FAQs on Freshwater Aquarium Snail Reproduction/Culture
Related Articles:
Snails and Freshwater Aquariums,
Invertebrates for Freshwater Aquariums by Neale Monks,
Assassin Snails and Sulawesi Elephant Snails. Keeping Clea and Tylomelania in the
Aquarium by Neale Monks,
Fresh and Brackish Water Nerites by Neale Monks,
Related FAQs: Freshwater
Snails 1, Freshwater Snails 2,
Freshwater Snail Identification,
Freshwater Snail Behavior,
Freshwater Snail Compatibility,
Freshwater Snail Selection,
Freshwater Snail Systems,
Freshwater Snail Feeding,
Freshwater Snail Disease, Snails
by Species: Mystery Snails,
Apple/Baseball Snails,
Malaysian/Trumpet Snails,
Ramshorn Snails
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Random egg sack, FW/Apple snail, solo
9/28/15
Hello all,
<Hey Jen>
I'm writing because I can not find the answer anywhere else.
My son has a 10 gallon tank which has a red tailed shark, about
3-4" long.
It is also home to an apple snail - well, I believe it's an
apple snail though the store that sold it to us recently said they've never sold
apple snails. These were the two long term inhabitants in this tank. I believe
the apple snail was added in April or May.
<Mmm; easy to look up pix....>
We are also housing some baby platies in there, temporarily, and there is quite
a number of tiny pond snails. (I'm not at all concerned about the platies. If
they outlast Red Tail then they will have a new home around Christmas. And we
are pulling out the pond snails as quickly as we can.
It's tough to stay ahead of them!)
<See WWM re Snail control>
While trimming back the plant matter my husband found three egg sacks 2-3" in
length, all under the hood and not in the water at all. Everything I've
found indicates that apple snails need a mate to reproduce.
<Ah yes; and others of their family>
So, my question is where and how did these egg sacks come from? And can I
prevent it from happening again?
<From snails.... remove them>
I've seen the pond snail egg sacks in the water, jelly-like and attached to the
plants. I'm fairly certain they are pond snails as my daughter has the same pond
snail issue in her tank. But I have NO idea where the egg sacks came from and
how to prevent it again. I'm also fairly certain that the under-hood egg sacks
are NOT the pond snails.
My husband has promptly disposed of the egg sacks because I was totally grossed
out by them, or I might have thought to grab a picture.
Any ideas are appreciated.
Jen Sowden
<Do you need help using the search tool (on every page) or indices on WWM?
Bob Fenner>
Re: Random egg sack 9/28/15
So the apple snail mated with the pond snails?
<Ah, no. It already was "pregnant". BobF>
Re: Random egg sack 9/28/15
Bob,
<Hi again Jen>
Sorry for that random last reply. My daughter bumped into me and I sent
accidentally.
<Heeee!>
I only have one apple snail. And many pond snails.
<Ah yes; understood>
The egg sacks we found under the hood are different than the pond snails' egg
sack. Different size, appearance, placement.
So, did the apple snail mate with the pond snails? Do pond snails have different
types of egg sacks?
<These snails did not cross-breed; and yes, differing egg sacks>
I'm quite competent on how to search but nothing I've searched has shown me how
an apple snail can lay eggs without a little help.
<Pomacea are dioecious; separate sexes; can/do store sperm in their tracts>
Enjoy your evening,
Jen
<And you. B>
Apple Snail Changed Sex 9/6/15
Hi crew,
Thanks for all the help with my previous issue. I wanted to share some
interesting information with you and your readers. I have an apple snail (most
likely Pomacea diffusa) that is either a hermaphrodite or has changed its sex
from female to male. I've read about the possibility of a male changing to
female, but as far as I know this seems to be unheard of.
This snail has been taking on the role of a female, mating and laying eggs,
since being in my tank. For the last 2 days I have witnessed her/him mating with
the other females quite frequently. I also want to add that there was no period
of inactivity in between the change in behavior. Just thought others might find
this interesting.
Have a good day!
<Hello Danielle. All Pomacea are dioecious, meaning they're either male or
female, but as you've observed, some species (though not the common Apple Snail
so far as I know) will change from one sex to another. This isn't the same thing
as being an hermaphrodite, which is the default among snails and slugs, meaning
they're both male and female at the same time, both animals fertilising each
other when mating and both animals laying batches of eggs.
It is also worth noting that some Pomacea species cannot be sexed externally, so
it's perfectly possible to think a snail is a male and it turns out it was a
female. Even with those snails that can be sexed, doing so reliably is harder
than people think because the variation in the sexual characteristics within
each gender is considerable (just as it is with humans or any other animal). In
short, sexing Pomacea species can be tricky and isn't a one-shot deal because
sometimes a snail that was a male turns into a female for no apparent reason.
There's some suggestion environmental triggers cause sex changes, but nobody
really knows. Among marine snails "imposex" has been widely documented though,
where marine pollution of certain types (typically heavy metals) cause sex
changes among snail populations, sometimes to such an extent that the population
can't breed properly and starts to decline. I'd encourage you to take a read
here:
http://applesnail.net/content/anatomy/reproduction.php
And perhaps post your findings on the AppleSnail.net forum for further
discussion. Thanks for sharing, Neale.>
Golden and Black Mystery Snails in my Little Brother's Tank.
Repro. 5/28/14
Hi! My name is Alex. My little brother got a fish tank awhile ago and
absolutely adores the two pet freshwater snails that accompany the fish.
It is a freshwater tank. Recently, the black mystery snail got
on top of the gold mystery snail and they floated around together.
<Mating.>
During this, a weird sort of pink substance came out of I don't know
where from the snails with little bubbles on it.
<Egg case. Looks like a big pink raspberry. Needs to be laid above the
waterline, otherwise the eggs will drown and no baby snails will
appear.>
I figured it was mating or something like that and simply encouraged him
not to gawk.
<On the contrary, observing animals mating is one of the best ways to
develop an interest in zoology. Mating behaviours are often very
complex, even bizarre, and invariably adapted to the particular
conditions where an animal lives. Apple Snails are males or females
(unusual for snails, where most are hermaphrodites) and perform internal
fertilisation. Their egg cases are extremely odd, being calcareous (to
protect from predators, presumably) and each baby snail is rather large,
but the egg case needs to be place somewhere dry but above the water. At
hatching, the baby snail must be able to drop down into the water or it
will die. It's very odd for a water animal to lay eggs on land, but in
this case makes sense, because Apple Snails live in swamps where oxygen
levels are low. The adults breathe air from time to time, but the eggs
couldn't do that if they were laid underwater, so putting the egg case
above the waterline solves that problem. It does of course mean the
aquatic Apple Snail adult must, for a short period at least, come onto
land where it is much less mobile and liable to dry out if it doesn't
hurry up. Isn't evolution amazing!>
But ever since, the black mystery snail has been completely fine and
active, but the gold one is just floating on the surface, not doing
anything. I read other articles on your page and checked everything. The
tank is fine, there are no bubbles in the shell (that I could find), and
the snail is definitely still alive since when I poked it's door, it
slid into itself. But it still floats, half-exposed, on the water's
surface, not clinging to anything. I'm not sure if it's pregnant, or
whether it's sick, but my little brother loves it so much and I want to
make sure that it's okay. Thanks for your time! Please help if you can.
<Apple Snails are a bit hit-and-miss in aquaria. Do check the heater is
set to the right water temperature for a start (not too cold, not too
hot, 22-24 C/72-75 F). Do also check water chemistry (should be
relatively hard and alkaline, and definitely not acidic). Apple Snails
often get pestered by fish, so check the tankmates aren't nipping at its
tentacles. Apple Snails are best kept away from fish to be honest. Even
something as small as a 5-gallon aquarium will provide a fine home for a
small group of Apple Snails. Do review diet; floating a leaf of lettuce
on the surface is a good addition to whatever else you're offering
(algae wafers for catfish are an ideal staple). But when all is said and
done, most Apple Snails live for about a year in aquaria, and only a few
make it into their second or third years. The problem seems to be lack
of a "resting phase" they experience in the wild. So if you're providing
all the right conditions but one of your snails doesn't make it, don't
be altogether surprised. AppleSnail.net is a great website for more
details on their specific needs, but do also have a read of the *many*
messages we get about Apple Snails, here:
http://www.wetwebmedia.com/FWSubWebIndex/MollusksFW.htm/MystSnailsF.htm
They simply aren't that easy to keep for their full lifespan without
tailoring the tank to their very specific needs.>
Sincerely,
Alex
<Most welcome, Neale.>
run away snail 9/30/12
Hi,
<Phyllis>
I have a 10 gallon tank with 2 platys, both female, and about 4 guppies, 3
female 1 male, and 3 apple snails; one orange, one black, and
one blue.
<Population is pushing the limit of that tank. Those guppies will
reproduce.>
My question is about my blue apple snail, he at least think he's a
he, climbed out of the tank and fell down behind it...
I recently noticed a cluster of eggs, which I promptly removed, then
notice that he was missing.. when I found him I portioned off some water
and half of an algae tablet to see if he would come out of his shell...
he did briefly so I put him in a breeding net..
<Why a breeding net? Better to put the snail into its own container with
an algae wafer to munch on.>
He has some gravel in his shell which I've been able to remove most of
it with some tweezers, carefully I might add, but he isn't responding to
much. I think he's injured from the fall cause there is a teeny tiny
hole in his shell.. is there anything else i can do?
<Could be injured, sure, but could also be irritated by the remaining
foreign objects in the shell. Try to flush out the foreign objects with
water the same temperature as the tank water.
Since you describe the hole in the shell as small, the snail should
calcify tissue near that area, so no reason to patch it as long as fish
or other snails can't get at the soft flesh.
At this point, I think you wait and read these links while you wait:
http://www.wetwebmedia.com/FWSubWebIndex/MollusksFW.htm/MystSnailsF.htm
http://wetwebmedia.com/FWSubWebIndex/MollusksFW.htm/AppleSnailsF.htm
and some general information here:
http://www.applesnail.net/content/various/snail_disease.php >
- Phyllis
<Rick>
Re: run away snail 9/30/12
Thanks, he spit out the last stone after leaving him be in the breeding
net.. I moved him in to the bigger area of the tank and check him this
morning. He seemed to be sleeping in one of the decorations so I left
him be.. the fish are leaving him be and I patched the hole on the lid
that he crawled out of.
<Ah, good. Hopefully the snail makes a full recovery. - Rick>
What is this please? 9/19/12
This was found this morning in the tank above the water level. We
have 2 very large yellow apple snails, 1 white medium apple snails and
to many to count baby Apple snail of different sizes (larger apple
snails keep making babies). We also have 5 minnow feeding fish and
one small algae eater. It is a fresh water tank with a basic
filter systems. The water is from our sink which is well water but
the ph level is normal. I was thinking it was snail eggs but we
already have lots of snail babies and have never seen these.
<Ah yes... this IS an egg mass from your Ampullaria. Cigars all the way
around! Bob Fenner>
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Re: What is this please?
9/20/12
thank you so much for letting me know. since you said the picture is of
apple snail eggs and this was the first time we have seen them i was able to
conclude that what we have been calling baby apple snails were not baby
apple snails and all the eggs that we have seen in the past
<Clearish, underwater I take it>
were not apple snail eggs. so with this information i was able to
search your site and found out that the small snail that we thought were
baby apple snail are really Physa snails which makes the eggs that we have
seen in the past Physa snails. i did not know anything about snail until
today.
snail my daughter is so happy to know that we will be having real apple
snail babies soon. the only thing that i could not find was how long
until the eggs hatch and are the babies big enough for you to be able to
see?
<Actually, they hatch out large enough to see w/ the unaided eye. BobF> |
mushy mystery snail
eggs 3/26/12
Hello,
I have been searching the internet and reading your FAQ but
couldn't find any answers to my question. I have a
mystery snail that is laying "mushy" eggs.
I've had mystery snails before that laid normal raspberry
shaped egg clusters above the water line, but this one is
different.
<Yes; these eggs are soft when first laid, and as you state up
next to the water line...>
She still lays her eggs above the water line but they are
very runny. She was laying some while I left for work and
they fell into the water they were so soft. The previous
ones I've removed are soft like tapioca, not hard like my
other snail's eggs. I am not looking to breed them, but
miss the convenience of having a nice egg cluster to
destroy. Is there a reason her eggs are so runny?
<Perhaps an aspect of nutrition; maybe there's
insufficient biomineral content, alkalinity here>
I assume these eggs are not fertile due to their texture,
especially when they fall in the water. I have recently
introduced another
mystery snail in the tank: would this help the egg situation
normalize?
<Depends... on the cause... on if it's a male>
Thank you,
Sabrina
<Do measure the chemical make-up of your water... and read
here:
http://www.wetwebmedia.com/FWSubWebIndex/MollusksFW.htm/MystSnailsF.htm
and here: http://www.wetwebmedia.com/FWSubWebIndex/fwsnailreprofaqs.htm
Bob Fenner>
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Could I release my Golden Apple Snail hatchlings?
1/24/12
Hello,
<Hello,>
We live in Cape Town, South Africa and have had golden apples in
our 35 litre aquarium for about 3 years now. Our original two
snails laid eggs of which 95% were eaten by our moors as they
hatched. 5 of those survived, we kept two and re-homed the other
3. These have grown into adults and have been doing the wild
thing a LOT, and over the last 2 or 3 weeks have laid 4
clutches(?) of eggs. We are a bit wiser now and more prepared so
we caught them in a breeding net that sticks on the side of the
tank. We have donated these to two 60 litre tanks at our local
science centre. There are still 2 clutches left to hatch
and I am wondering if we could set them free in a mountain river
nearby?
<Heavens no! Nothing could be WORSE!!! I cannot stress this
too strongly.
Apple snails can be, are a pest species in countries where they
do not belong. Never, EVER release unwanted pet animals
into the wild. Not only is the potential for ecological harm
MASSIVE, but you're also introducing hitchhiker pathogens and
parasites into the wild, too.>
I was reading some of your posts about how they die early in an
aquarium and I feel so sorry for our older ones, I never realized
they needed to lie dormant.
<Don't have to go dormant, but alternating cooler, warmer
periods through the year to allow a few months
"downtime" does seem beneficial. Maybe around 20
degrees for 2-3 months, then 25 the rest of the year.
Experiment.
They die below 18 C, so that's the limit.>
Also, is it wrong that siblings have had offspring together? Will
this make for weaker genes etc?
<In theory, yes, inbreeding allows mutated and/or harmful
genes shared by siblings to be passed on.>
So when the babies get a bit bigger do you think we could
release them, or could it be too cold for them?
<Do not, Do Not, DO NOT do this!!! Unwanted snails can be
squished with a stone and served up as fish food. Destroy the egg
cases if the Apple Snails breed too much.>
We are in summer now, 25 to 35 degrees. Winter is wet and goes
down to about 8 degrees - Celsius not Fahrenheit. It does not
snow, nor do the rivers ice over.
Hoping to hear back!
Dawn
Cape Town, South Africa
<Cheers, Neale.>
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Re: Could I release my Golden Apple Snail hatchlings?
1/24/12
Thanks Neale for the info - I promise I won't release them.
<Cool. South Africa is blessed with such wonderful
freshwater animals, we don't want to expose them any sort of
risk, however trivial it might seem.>
I think I will just let my fish eat the babies that hatch - they
pop out like popcorn and it is quite a treat for them!
<Quite so. Botia-type Loaches and Thorny Catfish (such as
Platydoras armatulus) will greedily eat these.>
Last year while I was cleaning the big tank, our cat managed to get
both black moors out the temporary bowl, and onto the floor - they
were shredded - all their scales were gone. I put them back into
the tank, and they lived! That week they ate 100 odd baby snails
between them and I swear the nutrition from the shells or something
helped their scales to grow back - they both grew back all their
scales and fins.
<Sounds plausible. Snails are veritable protein bombs, and the
calcium in their shells does no harm either.>
The one later gradually turned orange - but they're both very
healthy and happy - they are 3 years old.
<Impressive. Very few people manage to keep them alive for more
than a year. So whatever you're doing, you're doing
something right!>
Last thing on the snails - I'm confused now - if the apples are
not indigenous to Africa, then where did they come from?
<Farmed in Southeast Asia and elsewhere. Sometimes as pets, but
surprisingly often as food; they're esteemed as food in China,
Taiwan and elsewhere.>
Would I not expect to find wild ones in our local rivers then?
<No. The aquarium trade Apple Snail are two American species,
Pomacea bridgesii and Pomacea canaliculata, the first from South
America and the second from North America. There are close
relatives in Africa, but I'm not aware of them being traded as
pets. If you haven't discovered the AppleSnail.net web site, do
visit. It has lots of information on this fascinating group of
animals.>
Attached is a fuzzy pic so you can see which snails we have.
Ciao :)
Regards,
Dawn
<Nice aquarium, and clearly very happy snails. Cheers,
Neale.> |
Black Mystery Snail Eggs Below Water Line...
9/22/11
Greetings WWM, and thank you for providing such an extensive and
educational information resource, I have found it quite
valuable!
I have a 5 gallon freshwater tank with a single Black Moor
goldfish and a single Black Mystery snail. (I had another moor
and snail, but sadly there was a hurricane here recently that
caused our power to be out for 6 days, and I lost them despite
frequent water changes and treatments) The water is filtered and
planted, but not heated, and the ph is suitable for the moor.
My Black Mystery snail began laying eggs above the waterline this
morning, but apparently my fish startled her and she fell below
the waterline, where she continued laying eggs. I intend to
donate the babies to my local pet store. Will the eggs that fell
in the water be able to develop?
Thank you for your time and expertise. Regards, Cynthia
<Hello Cynthia. It does occasionally happen that Apple/Mystery
snails don't lay their eggs above the waterline, but when
that happens, the eggs usually don't hatch. Cheers,
Neale.>
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Indeed; these eggs are unviable/fungused. RMF |
Re: Black Mystery Snail Eggs Below Water
Line... 9/22/11
Thank you for responding so quickly! Apparently Bob the Moor
interrupted George the snail's egg laying, (I just learned
George is actually a georgette today) she only laid about a dozen
eggs, and from what I've read, apple snails can lay up to 600
eggs? Good grief, I'm going to have to donate to several pet
stores!!! Here is a picture of her laying, you can clearly see the
eggs, maybe this will help future readers. Thank you again for
answering me so quickly!
<The number of eggs varies wildly, and sometimes they'll lay
a few bunches of eggs instead of one big batch. They're fun to
breed, and you shouldn't have problems giving away some of the
offspring. But if you get too many eggs, just squish 'em!
Cheers, Neale.> |
Assassin snail eggs? 4/4/2011
I have a twenty gallon tank with a single female Betta, 3
assassin snails, and I just added 6 glass or ghost catfish.
Two of the assassin snails were crawling all over each other for
almost a half a day and the next day I found about 10 little
spots on the glass that look like sacs with something inside.
They're about 1mm.
I've included a pic but I'm sure if you can tell from
it.
My question is can I use a gravel cleaner in there or will I take
a chance on killing some of them? How long will I have to
wait?
Thank you,
Tim
<Hello Tim. Clea helena lay eggs in transparent, sachet-like
capsules about 1 mm across. They tend to be dotted about on hard
surfaces, far apart rather than in clumps. Once they hatch, the
baby snails dive into the substrate, so yes, you want to leave
the substrate alone. I've only kept them in tanks with sand
-- in the wild they burrow into sand and silt -- and the juvenile
snails reappear at shell lengths around 5-6 mm long,
usually several months later. I wouldn't keep them in a tank
with gravel given their ecology. In any event, using a gravel
cleaner is generally pointless so I'd lay off if you want to
breed these snails. In a sandy tank you don't ever use a
gravel vacuum, the snails cleaning the sand all by themselves.
Cheers, Neale.>
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Re: Assassin snail eggs? 4/4/2011
The substrate is mostly the smaller material for growing plants. I
wasn't planning on breeding them but it happened. Should I try
and make a sandy area for them?
<Wouldn't bother for now. See what happens!>
Thanks,
Tim
<Do have some personal observations here:
http://homepage.mac.com/nmonks/Projects/cleahelena.html
Cheers, Neale.> |
Clea helena New Baby 3/15/11
Neale,
<Greg,>
I know I don't have a perfect track record of identifying new born
snail species (I brought home pests on plants and had no idea back
then) but I'm sure I'm right on this one. I have a new baby
Clea Helena.
<Cool! They breed rather slowly, but yes, they do breed.>
Thing is, I only had one since November 1st. I haven't seen
"mom" for a bit but that isn't unusual.
<Indeed not.>
There's plenty of empty Ramshorn shells that shows the job is being
taken care of. This new snail though is extremely tiny.
<Yes; a couple of mm long, with a small brown shell, sometimes with
the yellow stripes visible.>
So even though I haven't seen both together, there's no way
it's the same snail. I'm talking about the size of a baby
Ramshorn. I would never have seen it if it wasn't on the glass and
it is so small I'm surprised it wasn't eaten.
<Somehow they survive!>
I'll get a picture later after the camera charges. I just
didn't know how unusual this is to start with "one" and
four months later have two. I know this is a rather new to the trade
creature so I wanted to share my discovery.
<Thanks for sharing. Mine do breed, and to a degree, you should end
up with a stable population. Better still, they help to keep pest
snails in check.
Cheers, Neale.>
Clea helena New Baby
<PS. I have a photo of a young Clea helena about halfway down this
page:
http://homepage.mac.com/nmonks/Projects/freshwaterreef.html
Cheers, Neale.>
Little critters, FW... 02/05/11
Good morning crew
Hope you are all well.
When feeding my fish and a general checking I noticed that the
bog wood in my tank were covered with little white dots. Please
pics attached.
At first I thought they might be Neon Tetra eggs but then noticed
that they were moving.
This is a planted tank that is a 10 month mature with 7 Neon
Tetras, 1 Panda Platy and 2 male Sunset Gouramis Colisa
labiosa.
I think they might be baby snails can you assist?
Many thanks in advance
<These look like Nerite snail eggs to me. They may hatch, but
the snail larvae don't usually develop in freshwater
conditions. In the wild the larvae drift down to the sea, so
develop in either brackish or marine
conditions. Cheers, Neale.>
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apple snail, repro. 11/22/10
Hello,
My daughter and I each have an apple snail. How long after they mate
will the female lay her eggs?
Thank you,
CHERYL
<Difficult to say. But assuming the snails are sexually mature, and
that you have a male and female, you should find the raspberry-like egg
masses laid ABOVE the waterline within a few weeks of introducing them
to the same aquarium. Cheers, Neale.>
Double checking I'm doing things right; Xenopus
and "eggs" 11/03/10
I do have tadpoles and I've discovered a number of egg
clusters.
<Indeed?>
The baby snails appear unfazed when the toads kick them around
the tank - I guess growing up with big toad feet kicking them
helped a little on that. The snails just continue on as if
nothing happened. The poor cameras have had the worst time
getting a picture of the egg clusters, but I got a good shot...
well, it's not completely in focus, but the best of the ones
I've taken. These eggs are incredibly small - much tinier
than the head of a pin. The poor camera really had the worst time
focusing on the eggs since they're backlit by my window,
transparent and very tiny!
<I don't think these are Xenopus eggs. They look too
small. Xenopus eggs are quite large -- 2-3 mm across -- and laid
singly, not in jelly-like masses. They aren't transparent
either. I think these are Physa or Physella eggs. Do use Google
to see pictures of Xenopus eggs.>
I think I'll just let nature handle how things work out now.
I really only need to maintain the water level and clean the
filter unless I want to risk the babies' lives. The plants
(which have no actual roots) have been growing like crazy on the
surface and even some that the toads did not uproot on bottom
have been doing well.
<Floating Indian Fern is the best for Xenopus tanks.>
At best, I'll keep a close eye on the tadpoles and move the
adults to a separate tank if things start getting out of hand.
I've got a spare tank on standby - filter and all should the
need arise. Thus far, they haven't even noticed the tadpoles,
but I think I need to do further research on the metamorphosis of
the toads for timing. I discovered the eggs last Thursday and
clusters have shown up since... Sage has been busy. It would
appear the adult snails left eggs of their own before dying, but
apart from the already hatched babies, there hasn't been a
whole lot of activity for those eggs up above the waterline in
three separate clusters of their own. Jennifer
<Cheers, Neale.>
Re: Double checking I'm doing things
right
Well, somebody's been busily laying eggs. There's at
least 12 clusters all over the tank. I'm pretty sure I've
seen tadpoles in there, too. Jennifer
<Hello Jennifer. I don't doubt that your frogs have been
breeding; I just don't think those eggs are Xenopus eggs.
There's an easy test: stick some in a breeding trap, let them
hatch, and see if you find tadpoles in there or snails. In the
meanwhile, use Google to compare the eggs of Physa snails against
Xenopus frogs, and come to your own conclusion. Good luck,
Neale.>
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Look more like snail eggs
to me!
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Re: Double checking I'm doing
things right - 11/7/10
Actually, now that I think about it, the egg clusters you
saw in the picture didn't begin appearing until
after all the adult snails were long gone and I'm pretty sure
the babies are too young to lay any eggs yet. Besides, you said
the mystery/apple snail has to lay their eggs above the waterline
- these are below... mostly well below the waterline. The highest
cluster I can find is about an inch below the surface. Probably
won't know for sure for a couple months, though. Any tadpoles
are presently too small for the cameras to catch. At least we
know the toads and snails get along when the snails are born in
the toads' tank. One of the toads kicks at least one baby
snail daily and the snail just keeps going about its business as
if the toad's foot means nothing to it. Jennifer
<Hello again Jennifer. As I said last time, the only way to be
100% sure is to isolate those egg masses in another tank and see
what emerges. Five seconds on Google should show you what Xenopus
eggs look like, and they don't look anything like blobs
containing bunches of near-microscopic eggs. On the other hand,
that's exactly what Physa and Physella spp. egg
masses look like. Again, as I'm sure I've stated
before, apple snail eggs are pink and laid above the waterline,
and I never said that these egg masses were produced by Pomacea
species. These egg blobs have nothing whatsoever to do with your
apple snails so forget about connecting the appearance of these
egg masses with the happiness (or otherwise) of your Pomacea spp.
snails. Look up Physa and Physella on Google and you'll see
what these snails look like and what their egg masses look like.
As for the happiness of your apple snails, the problems usually
occur once the snails are about 12-18 months old, which is when
most specimens die. Keeping them alive for 3-4 years so they
reach their full, tennis ball size is the hard part. I've
never said apple snails are difficult to keep alive for the first
year! Cheers, Neale.>
|
Snail hatchlings. 9/18/10
Hello,
<Hello,>
I've searched your site (and the internet), and while I found a
similar description of my dilemma on your FAQ's, there wasn't
much of an answer and the link returned me to the same page
<OK.>
Anyways, I have a 10 gal tank I've set up for raising freshwater
snails, partly to feed my puffer. I'm not sure of the breed of
snails, people usually just refer to them as pests, but I've had
them before and I'm familiar with their eggs.
<If the snails have shells around 5-6 mm long, their shells are
conical rather than flat ram's horns, and their bodies are brown in
colour, then these are likely Physa or Physella spp. snails.>
However, I recently noticed the egg sacks appearing and today noticed
some hatchlings.. As I watched one of the egg sacks, I noticed what
appeared to be little worms, either coming out of the sack or feeding
on it.
<Likely the latter. Flatworms, such as Dugesia spp., are quite
common in aquaria. Fish tend to eat them, but if there aren't any
fish, then there's a good chance they're flatworms. Nematodes
are also common.>
Are these 'worms' baby snails or something else? If not snails,
are they predatory towards snails or eggs? Any info would be greatly
appreciated! Thanks!
<In all likelihood completely harmless. Cheers, Neale.>
Mike
Re: Snail hatchlings. 9/19/10
Thank you so much for responding, and so quickly at that.
<No problem.>
Your answers have brought up a few more questions... I'd consider
putting a few fish in with the snails, but my concern is they'll
feed on the baby snails or eggs,
<They won't. Snail eggs seem to be unpalatable, and snails
themselves, even tiny ones, are targeted as food only by specific types
of fish: puffers, loaches, Synodontis catfish, some cichlids, and a few
others. Most community fish ignore snails.>
though I would like for them to eat the worms or nematodes, whatever
they are Some of the fish I'd consider putting in with the snails
would be: mollies, juvenile or adult, bumble bee gobies, cherry barbs,
or even a striped peacock eel.
<Do be sure the read on the needs of these fish. The Mollies,
gobies, and even the Peacock Eel would thrive best in a planted,
slightly brackish aquarium with a bit of salt added, around 4-5 grammes
per litre. The Cherry Barbs wouldn't like those conditions, so if
you can substitute for, say, Endler's Guppies or Platies, you'd be
laughing. I will stress than spiny eels generally are difficult to
keep, and the use of slightly brackish water and a "smooth"
silica sand substrate really do help dramatically.>
Will any of these feed on the 'worms' and/or might they feed on
the snail hatchlings or eggs? Thanks again!
<The nematodes and flatworms are multiplying according to how much
food there is for them to eat. All tanks have a few, and fish generally
ignore them and conversely these worms do little harm and potentially
some good by keeping the substrate clean. But with all this said, if
you have a lot of snails and worms in your aquarium, it probably means
you're overfeeding and/or under-cleaning the substrate.>
Mike
Re: Snail hatchlings. 9/20/10
Well thank you.
<Ahh, Neale is "marked out" for the week. BobF in his
stead here>
This tank was just set up recently intended as a planted tank and for
snails to multiply. It has a substrate specifically for plants instead
of gravel, and I only started with 4 or 5 snails, which just started
laying eggs. As far as feeding goes, I really don't put food in
except some occasional flakes, I figure the snails will eat decaying
plant matter and algae.
<Mmm, maybe sufficient, but if you're shooting for production, I
would investigate the species needs, preferences, and provide some
par-boiled or microwaved terrestrial vegetable material>
There is a very small amount of salt in this tank,
<? Why?>
below the recommended amount for even a freshwater tank.
<See Neale's pc. on WWM re such use:
http://wetwebmedia.com/FWSubWebIndex/SaltUseFWArtNeale.htm>
My larger tank with fish, has salt, the recommended amount for
freshwater, but below brackish.
But thank you! You've been very helpful!
<And our archives re FW Snails:
http://wetwebmedia.com/FWSubWebIndex/fwsnails.htm
and the linked files above. Bob Fenner>
Snails in one tank to provide food for my puffer?
5/24/10
Crew,
Hope all is well, I have a quick question. I have two tanks, one is a
55G freshwater tank with a few different types of catfish and a spiny
eel.
All levels are zero and water quality is maintained by doing weekly
water changes. All the fish are doing well and healthy. My other tank
is a 20G brackish aquaria with a Figure 8 puffer and several bumble bee
gobies.
That tank too has all zero levels and water quality is maintained by
doing weekly water changes.
My question is this, can I put a snail or two or three in my 55 gallon
freshwater tank to supply my puffer with enough snails for food?
<Worth trying... I'd look for "Ramshorn" species
myself...>
I was going to setup a snail only breeding tank but am now thinking it
may be beneficial to have some snails in my 55. I don't want them
to take over and wasn't sure if this is a sound idea. How fast will
these things propagate?
<More or less continuously if mature... but you'll not be able
to grow enough to produce all food for this puffer>
Is it a good thing to have some snails in my 55G tank for cleanup and
what not?
<Not really... Snails are problematical for a few reasons; the most
significant for being vectors of many fish and human diseases... Read
here:
http://wetwebmedia.com/FWSubWebIndex/fwsnails.htm
and the linked files above>
I'm scared that if I put a couple in, the next thing I know my 55G
tank will be crawling with them and no matter how fast I remove and
feed them to my puffer it won't be enough to keep up with how fast
they multiply. Or do you think setting up a separate snail nursery is a
better idea?
-Matt
<Read on! Bob Fenner>
Mystery Snail Babies 3/17/10
Hi!
<Ave!>
I've been reading about Mystery Snail reproduction here, and have
learned a lot (albeit after the fact!) about what just happened in my
aquarium. I have a golden Mystery snail who was quite enamored of her
blue Mystery sweetheart (who, sadly, passed last week), and now I have
about 40 Mystery miniatures in my 10 gallon tank. Honestly, as the two
adults were in the tank for close to six months with no offspring, I
didn't actually think it
would happen.
<Does depend on the temperature and the season. Pomacea spp. snails
generally do best kept cool for a few months and then warmed up for
summer, much as if they were in the wild. When kept constantly warm or
constantly cold, they never really do well.>
My question now is this: how long can I wait before I separate these
babies out of the tank?
<It's best to raise the baby snails away from fish, at least
until they're about 1 cm in shell width.>
The fish population doesn't seem to be bothering with them - I have
a pair of guppies, a Cory, and 8 assorted Tetras - so I'm not
anxious to go searching for all the teeny babies just yet.
<Depends what you want from life. If you want rear a whole bunch of
them so you can sell them or share them with your friends, then rearing
them alone ensures all the snails get plenty to eat. Even if they
don't get eaten by the fish they're with, some will surely
starve, and you'll likely find out of 40 baby snails you end up
with half a dozen of sellable size.>
On the other hand, how long will it be before they start multiplying
again?
<Sexually maturity is attained within 3-4 months, at which point
their shells should be about as wide as your thumb.>
I'd like to segregate them to their own tank before that
happens.
<Overbreeding is almost never a problem with Pomacea spp. because
the snail eggs are laid above the waterline, usually on the hood. Check
once a week, and if you see the red, raspberry-like egg clusters, just
scrape them off.
Problem solved.>
On another note, I have two Betas in large bowls with live plants.
Would a snail baby do well in each of those, or should they be in a
filtered/heated tank?
<I don't understand the either/or bit. You CANNOT keep a Betta
in an unheated tank, and really the tank for a Betta should be filtered
too. If you're keeping a Betta in a bowl without a filter and
without a heater, you'll soon have a dead Betta. Yes, I know people
sell them in cups, but that's wrong of them. Bettas need, at
minimum, a 5 gallon tank. Unless you're changing 50% of the water
daily, you need a filter. Ammonia and nitrite levels must be zero. If
you live in the tropics and water temperature is a balmy 28 C/82 F,
then you don't need a heater. But if it's
cooler than that, e.g., inside a centrally heated home, then the Betta
MUST have a heater. Forgive me if I misunderstood your question here,
but it just looks to me like you're keeping Bettas in unheated
tanks, and outside
of the tropics (or a specially heated fish room) that's just wrong.
Do read here:
http://www.wetwebmedia.com/FWSubWebIndex/bettasysart.htm
>
Thanks for your help!
Erin
<Cheers, Neale.>
Snail sacks won't hatch 1/6/2010
Hello,
Our Mystery snail has laid 7 sacks of eggs on the glass in our tank.
The first 2 sacks were laid mid November and still have not hatched.
One sack was laid mid December and hatched in about 2 weeks. I saw
about 5 or 6 babies for a few days and now I don't see any.
<Two main reasons. Firstly, if the water is too cold, the snails
will simply die. Bear in mind these are subtropical animals, and you
simply can't expect them to reproduce at room temperature (unless
you live in the subtropics, of course!). If you're anywhere
wintery, then forget it.
Secondly, hatchling snails also need suitable food. Algae is the prime
food, together with decaying organic matter. On top of this, review
water chemistry (needs to be hard and alkaline) and any tankmates
(shouldn't be any, at all).>
The last sack was laid 1 week ago. So, we still have 6 sacks that have
not hatched yet. Can a snail lay many infertile sacks?
<Unlikely, but if the air is cold, they won't develop.>
The tank condition seems fine for laying eggs, but maybe not for
hatching them? I have seen a drop of water hanging off the bottom of 2
of the sacks.
Is that bad?. We really want some baby snails, but honestly, the tank
is getting so full of yuck at the bottom, we need to clean it.
<Indeed, but don't go bananas, since a certain amount of organic
matter is precisely what these snails eat. A simple air-powered sponge
filter should do the trick, and algae and infusoria will grow on the
sponge and that's what the snails will eat. Use a turkey baster to
pipette out detritus as/when seen on the bottom of the tank in between
the weekly water changes.>
Filters are only lasting a week now because they are getting clogged.
We also have 5 "Glo" fish, 2 plecostomus and a gold fish in
the tank. Should we just get rid of all the sacks, clean the tank and
let the snails lay more later?
<Depends what you're after. You can't breed Apple snails in
an aquarium with fish, that's a given. But there's nothing to
stop you putting any baby snails you find into a breeding trap and
hoping they don't crawl out. Most *will* crawl out and get eaten by
the Goldfish and catfish, but a few might survive long enough.
Otherwise, yes, you'll need a 5+ gallon aquarium with a heater and
a sponge filter to breed Apple snails. It isn't difficult -- done
so many times -- but there are things you need to have set up first to
be successful.>
Thanks for your time,
Barbara
<Cheers, Neale.>
Freshwater Snails... culturing for food 8/22/09
Hello, I just purchased a Green Spotted Puffer fish.
<A fascinating brackish water species. Sadly, often kept in
freshwater, where it quickly dies. Do see here:
http://www.wetwebmedia.com/brackishsubwebindex/gspsart.htm
While I'd like to think you're keeping your puffer in brackish
water, you'd be surprised how many people don't, and the
consequent numbers of sick and dead Green Spotted Puffers there are in
the world! Juveniles are best kept around SG 1.005 at 25 degrees C/77
degrees F, that's about 9 grammes of marine salt mix per litre.
Adults should be kept in more saline conditions, around SG 1.010, or
15.5 grammes of marine salt mix per litre.>
I also purchased 12 little snails that range from the size of a pea to
the size of a pin head. The snails are a different variety (Ramshorn
and others.) I do not know anything about snails but have been told
these reproduce very quickly.
<Quite possibly, but rarely fast enough to provide live food in a
pufferfish aquarium. Even if the puffer only eats a modest meal of ten
snails, that's practically the whole of your population. Repeat
that daily, and you'll quickly wipe out any population. The
exception to this may be the Malayan Livebearing Snail (Melanoides
spp.) that thrive in brackish water and stay hidden under the
substrate, but these have such tough shells their value as food is
essentially zero. Only when hungry will puffers go for them, and even
then, only the smallest specimens. Some aquarists consider them a
danger to puffers, their shells being strong enough to crack pufferfish
teeth. Whether this is a valid risk or not is debatable, but it's a
concern some experienced keepers have raised. So, in total, there's
no point whatsoever adding snails to a pufferfish tank on the basis of
providing a suitable amount of food. It won't work unless we're
talking a pond-sized aquarium where a population of hundreds, if not
thousands, of suitable snails (e.g., Physa spp.) could be
maintained.>
The fish store said they were all self reproducing. I put all 12 snail
into a 1 gallon aquarium along with an air stone. I do not have any
substrate in the tank just an empty bottom. It has fresh water that was
treated with "Prime" and is at room temperature. The snails
were all very active crawling all over the sides of the aquarium. I put
a piece of lettuce in the aquarium (washed in treated water) and put
the air stone on top of it to push the lettuce down to the bottom. When
I got up the next day all the snails were laying on the bottom of the
aquarium. I kept an eye on them and none of them have moved since.
after it got dark I took a flashlight and looked in the aquarium and I
could see 1 of them coming out of his shell but he never moves. I
removed the lettuce and put an algae wafer in the bottom along with a
little bit of tropical flake food. At this point they are not moving
around. I got these to feed the puffer fish but I am afraid to give
them to the puffer because I do not know what is going on. I have
checked the ammonia, nitrites and nitrates but since it is fresh water
only 2 days old everything was at zero. I did put 6 other snails into a
30 gallon aquarium the was already cycled but I cannot find them at
this point. I got the 1 gallon tank free and I figure they would be
easy to find so I could feed the puffer. Any help would be
appreciated.
<Rear suitable snails in another tank. Physa spp. are ideal for
smaller puffers (to around 8-10 cm) while larger puffers will take
Planorbis, Viviparus spp.>
Thanks
-Jon
<Cheers, Neale.>
Re: Freshwater Snails 8/22/09
Neale,
<Jon,>
WOW!!! Thanks for the fast response! I have posted on forums on my
journey to learn more about puffers, snails and others and all I get is
"I think" and "Maybe."
<I'm glad to have helped.>
I appreciate you also commenting on the puffer as well. I actually
found the webpage you referenced right off the bat when doing my
Googling. This puffer is about 1" big and has been kept in
freshwater.
<Still a pup! Can be somewhat delicate when young, but not
especially difficult to keep.>
You think it is best to start slowly changing him to brackish water
now?
<Don't do anything radical. Simply use normal water changes to
replace water with slightly brackish water. For a fish this size, SG
1.003 is ample. That's about 6 grammes of marine salt mix per
litre. So if you take out a 15 litre bucket of water, add 15 litres
with 15 x 6 = 90 grammes of marine salt mix. Once the fish is more than
twice the size he is now, do water changes where you're replacing
water with water that has 9 grammes of marine salt mix added per litre,
i.e., a 15 litre bucket would contain 15 x 9 = 135 grammes. This is
about SG 1.005 at 25 degrees C. In theory, you can keep GSPs perfectly
well even at that low salinity, but once the fish are near full grown
(around 10 cm/4 inches) you may care to nudge the salinity upwards to
SG 1.010, about 15.5 grammes of marine salt mix per litre.
Again, you'd do this simply by doing water changes. Going slowly
like this allows the bacteria in the filter to adjust.>
I also read that they come with parasites in them and they should be
medicated right away which will extend their life. Is this something I
need to do?
<Not unless there are obvious signs of infections. Over-medicating
can cause all sorts of problems. Brackish water will kill a wide range
of external parasites anyway, including Ick and Velvet as well as
various "worms" and "lice".>
How can you tell how much food is enough for them?
<With puffers, a good rule of thumb is to feed them until their
bellies slightly swell outwards. They shouldn't look like they
swallowed a bowling ball! Skipping a meal once a week does no harm.
Vary the diet, offering mostly shell-on foods such as krill, daphnia,
bloodworms, etc. Some puffers enjoy cooked peas. Soft meaty things like
squid and mussel are good for them, but use in moderation to avoid
problems such as constipation and vitamin deficiency.>
I read they will eat until they rupture their stomachs.
<Myth.>
If I drop 1 snail into the tank (the puffer goes wild) his stomach gets
fairly large after he eats it so I stop feeding him at that point.
<Fine.>
Am I feeding him enough food?
<So long as he isn't "hollow" bellied, he's
fine.>
Keep in mind the snails are about the size of a pea or smaller. Your
page says you have to GSP as well. What is best to feed a puffer of
this size?
Your page says one thing to feed them is ghost shrimp.
<Adults certainly enjoy them.>
Being that my puffer is only about 1" big will he be able to eat
ghost shrimp or is he to small?
<Probably not. Daphnia and brine shrimps, as well as wet-frozen
krill and Mysis, will be fine. My puffers sometimes refuse things like
krill and Mysis, I suppose because these foods are "hard
work" to chew and swallow.
Don't relent! If needs be, starve your puffer a day or two, and
then offer these nutritious goodies.>
Can I keep the ghost shrimp with the snails or will the ghost shrimp
try to eat the snails? I think I need to make a trip out to the store
to find some other types of food. I have been giving him a snail every
other day and freeze dried brine shrimp (which you do not list as a
food for them.) I did by some shrimp for me and gave him a little piece
which he looked like he really enjoyed. I have only had him for about 1
week at this point.
<Brine shrimp are a fine treat, and they're full of fibre, but
they contain almost no other nutrition. So while fine once a week,
don't use them too often.>
I did find that most of the snails did move late last night. When I got
up most of them were around the algae wafer, others were on the sides
of the tank. Should they be constantly moving? <Yes.>
I read on your posts that some people have experienced the snails
laying on the bottom and just moving at night. Other say their snails
are constantly moving. I am sure it also depends on the type of
snail.
<Precisely so.>
Thanks for taking the time to answer my email.
<My pleasure.>
I have a friend who has been raising cichlids for 15+ years but when it
comes to brackish\salt water fish and puffers he doesn't really
know too much about them. It is nice to see that someone with
experience is willing to take time to respond to so many emails (of
which I bet you get a lot of) and take the time to help others out so
they can learn the best way to care for their aquariums.
-Jon
<We try and do our best, at least. Enjoy your fish! Cheers,
Neale.>
Do snails carry their eggs? 7/10/09
Hello. I have been browsing your website for the answer but could not
find it. My young daughter brought home some snails from a school
project.
They are small and have black shells. They are fresh water snails.
<Could be anything! But do review the genus Physa, the so-called
Tadpole Snails, and the genus Planorbis, the Ramshorn Snails. Both are
common and include numerous small, easily maintained species.>
The 2 of them were huddled together for a while and a film grew around
them. I thought they were dead but soon enough they began moving around
the tank again. Just recently one of the snails has been upside down in
the tank. Again I feared it was dead. A strange bubble (with bubbles
inside) formed and the snail is actually holding it (I have seem its
soft body moving, grabbing and moving this bubble). Are these eggs?
<Can't tell from your description, to be honest. Snail eggs
typically look like tiny (a few mm across) masses of jelly, within
which you will see a few dark spots, the developing snail embryos.
There are numerous exceptions to this description, but this is the most
common way coldwater pond snails breed.>
If so, what should we do to help the little ones survive. This is a
very basic tank... a few pebbles and 3 tiny plants. We are far from
knowledgeable aquatic life caregivers! :-) Thank you for reading.
<Basic care of snails is similar to that of fish. Simply in terms of
good water quality, you'll need a tank 5 gallons in size or
upwards, and equipped with a filter of some sort, an air-powered sponge
being ideal.
Change 25% of the water every week or two, adding water conditioner to
each bucket of water to removing chlorine and copper, both of which
kill snails quickly. For food, algae will be the main thing, and that
should grow readily enough if you put the tank somewhere sunny, like an
east-facing windowsill so it gets a few hours sunlight but doesn't
overheat (above 30 C for extended periods is bad for coldwater snails).
Such sunlight will also help your plants survive without additional
lighting; snails will eat "struggling" plants so do choose
your plants carefully. Aquarium shops often sell plants that either
require strong lighting or won't live underwater for more than a
few weeks; such plants will start to die and soon become snail food.
Once a week, add a tiny pinch of fish food or half a catfish algae
wafer. Remove dead snails as/when you find them to avoid problems with
decay and water pollution. That's about it, really. Do read
here:
http://www.wetwebmedia.com/FWSubWebIndex/fwinverts.htm
Cheers, Neale.>
Re: Mystery balls in a freshwater tank
6/1/2009
Here are some pictures. I am not sure what these things are.
<Nor me, to be honest! I'd assume the balls are snail
eggs, and the yellow fuzz fungus consuming something dead.
Pomacea snails usually lay their eggs above the waterline, but I
suppose they might fall into the water and decay, resulting in
the fungi appearing. Pomacea eggs are distinctly
"crunchy", so the texture would be a give-away.>
There are clumps of yellow balls and clumps of yellow fuzz. Info:
29 gal tank, full of guppies, two mystery snails, one loach, and
two sunburst platy wags.
<Cheers, Neale.>
|
|
Re: Mystery balls in a freshwater
tank 6/1/2009
thanks. I believe i have fungus because the yellow fuzz turned to
yellow balls over night, and they are soft and mushy.
<Problem solved then. Or rather, changed. Healthy aquaria
shouldn't have any visible fungus at all: organic matter should
be removed before it develops. Cheers, Neale.> |
My apple snail, repro. issues 4/30/09
Hello!
<Hello Manda>
I have three apple snails, two are golden Inca and the other is a
mystery snail. My question is this: One male golden and the female
mystery both have what appears to be a strange crack on the front of
their shells. It
looks like the shell split, and is growing back together. What is this,
and should I be concerned? Also, The golden male and mystery female
have been mating, or what I call "snex-ing". How long will it
take before I find eggs in my tank?
<Ah, this likely explains the "crack". Often when apple
snails mate they can damage their mantle (where the shell production
occurs), the crack is not actually a crack, it is an area of no shell
growth in the same place
where the damage occurred to the mantle. Other causes could be from
rapid changes in temperature or availability of food, but considering
the mating, I think that is the most likely culprit. If the crack the
mantle damage isn't severe, which it doesn't sound like it is,
then they should both be fine.>
<As far as the eggs go, make sure you have adequate space at the top
of the tank without water against it. About the width of the snail
shell is normally enough space, and the eggs will be laid up top on the
glass
outside of the water.>
Thank you very much for taking time to read my question.
<Thank you for taking the time to write us, and include all the
details even if they seemed unrelated. Those extra details are
sometimes the final piece to the puzzle.>
Manda
<Josh Solomon>
Poecilia repro; Mystery fish (Rasbora borapetensis); Apple
snail repro, aestivation 03/29/09
Dear Crew, I'd like to ask if my tank is suitable for breeding
guppies. I have a 40 gal. tank, 3-4 platies, a few Danios, and 8-10
mollies. Just a few days ago, I recently purchased 4 male guppies and 3
female. I also purchased 5 snails. I do have a separate tank about 35+
gal., but I've never really used it for breeding.
<Well, the 40 gallon is certainly plenty big enough for breeding
livebearers, though Danios are very good predators and will take any
small fry they can find.>
Every time a get fry in my tank, we don't usually scoop them out.
They're pretty good at hiding, and we usually notice them when
they're 1-2 weeks old. Up until now, I've never been concerned
about the other fish eating the fry, because they get fed about 3 times
a day. But now, I'm thinking that I should transfer some of my fish
to the other tank, or at least those
I suspect are going to reproduce. Should I? It's never been a
problem before.
<Up to you; floating plants will protect some fry, and it's
really only a big deal if you actually want to rear the fry and sell
them on. If this is the case, moving the fry to a breeding tank as/when
you find them is a good idea. If you get a production line going, and
have just a single variety of Guppies (or Platy, or whatever) then the
offspring should be good enough to
sell. Retailers tend not to want cross-breed fry, e.g., from Black
Cobra males and Green Snakeskin females. On the other hand, if all you
care about is the occasional fry surviving, then by all means let
nature takes its course.>
Also, I was wondering if you could identify my Danios.
<Not Danios.>
When I bought them, my dad thought they were pretty cool, so we
purchased 4-5 of them. Now, I'm having a little trouble breeding
them, so if I knew what they were called, it might help. I'll
attach pictures of the fish.
<These are Rasbora borapetensis, known as the Black-line or
Red-tailed Rasbora. A nice fish, gets to about 5 cm long, needs to be
kept in groups of 6+, and prefers slightly soft/acidic water (pH 6.5,
less than 10 degrees dH). Water temperature should be relatively cool,
22-26 C recommended. Not particularly easy to breed, and certainly not
compared to Danios. Rasboras generally are fussy about water chemistry,
and won't breed at all if it isn't right.>
One more thing. I'm worried that my Golden Mystery Snails won't
reproduce that well. Once, about a year ago, there was some
reproduction, but eventually, the snails all died away.
<Absolutely typical.>
What should I do to keep the population alive?
<Allow the Apple snails to aestivate for 3 months of the year. Apple
snails are adapted to a seasonal climate, and during the summer rest
for three months buried in mud. Kept at tropical temperatures all year
long they simply "burn out". This is why you ALMOST NEVER see
full size Apple snails in aquaria. Adults can be the size of tennis
balls, but the ones in fish
tanks are usually a lot smaller.>
Should I know how to tell the difference between a male and a female to
add one or two if there isn't enough for reproduction?
<Sexing isn't easy, though the penis on the male is apparent if
you know what to look for. Applesnail.net has some pictures.>
Thanks for reading the questions. I'll be looking for a reply soon!
Bebe
<Hope this is soon enough! Neale.>
Pink crusty oblong growth on inside of tank lid?
Apple Snail Laying Eggs 4/16/08 This is a 7 gallon acrylic tank
with a inside hanging filter. It did hold my Betta at one point, has a
huge black snail, a Pleco, and two small angels. I transferred the
Betta out to a bowl. So just the two fish of Angels. A pet shop sold me
a beat up angel cheaply, but it did die two weeks later. When I took
the lid off of the tank then, I noticed a pink crusty oblong growth on
the inside of the lid. I just disposed of it, and the tank went on
it's merry way. But now when I transferred the two angels, I
noticed a similar growth! I have transferred all livestock out of the
tank and plan to disinfect everything with a 5% bleach solution and
just let the tank sit empty for a while. Any idea what this thing is,
or what caused it? Sincerely, Chris <As a way to avoid predators
your snail is actually laying eggs out of the water. When the eggs
hatch the baby snails will fall into the water and start to
grow.-Chuck>
Mystery snail babies...but no mate 4/6/08 Hi
guys, it's been awhile! (Our clowns, Maria and Carlos, are
doing great!) I have two beta fish in separate 5 gallon tanks, with
one plastic decoration in each tank. About four months ago I got
what was labeled as golden mystery/apple snails, and placed one in
each tank. I figured mystery snails would be a good choice because
I didn't want a ton of baby snails going around. <Ah, I see
where this is going...> Anyway, these snails have not been with
another snail for these past four months, and while the snail in
The Professor's tank is still solitary, suddenly I'm seeing
A TON of baby snails in Xavier's tank. I was under the
impression these snails were sexual and needed a mate to reproduce.
<Correct; they are not parthenogenic, though like most snails
they are hermaphrodites.> Will you take a look at these photos
and tell me if these are in fact a breed different from the
mystery/apple snail? Thank you! <Yes, this are indeed baby
Pomacea. The snail you had must have stored a packet of sperm since
it was last with another snail. Squish the babies if you don't
want them, but otherwise they're easy to rear, and pet shops
happily take them.> <Cheers, Neale.> |
|
My Ramshorn snail is reproducing :| -03/27/08
Hello again everyone! I've been reading about snails on your
website so long my eyes feel like they're going to fall out! Very
helpful, but i just have a couple quick questions for you. I recently
bought a Ramshorn snail from the pet store, and he's been doing
great so far in my tank - a little too great in fact. He (and she, I
suppose) just laid a nice big batch of eggs in one of our fake plants.
From what I've read online so far, I understand that this will
probably not be the only time this happens and snails tend to lay eggs
like crazy. Now, being the paranoid fish owner that I am, I am worried
about the fish in my tank! I know they will probably not do well to
have a snail infestation. I've got a collection that includes one
violet goby, one dojo loach, two Bala sharks, one clown Pleco, three
black skirts, one emperor tetra, and two blue rams. So far, no one has
touched the eggs as a meal, so I am worried that once they hatch
there'll be a similar reaction - that is, none. I read that
loach's eat the baby snails, but will any of the other fish? And if
not, should we try to get rid of any future eggs before they hatch to
prevent the snails from taking over? Thanks so much for your time,
Kelly <Yes, the Loach will eat the baby snails. Chances of the snail
population causing problems are low, but if you want to be sure, by all
means remove the snail eggs. Cheers, Neale.>
Re: Green Spotted Puffer, Coquina Clams, and Mole
Crabs... + Now, raising snails... for puffer food 12/14/2007 Marco,
Within two hours of placing the snails into the 20 gallon, I had a
cluster of eggs smack-dab in the middle of the front pane of glass.
Now, a few days later, they are getting' down-and-going' to
town. Another question: I've read that one should rinse lettuce
leaves (Romaine), dry them, then freeze them for a few minutes before
feeding to the snails. Is it okay to just buy a head of lettuce,
separate the leaves, wash, dry, and leave in the freezer until needed?
<Sounds okay. Personally I prefer feeding well washed slices of
cucumber and other vegetables in addition to old (but still good) fish
flakes. Ramshorns are not picky and as long as you do not poison them
with pesticides or heavy metals they seem to thrive on various
foods.> What I buy always goes bad in the fridge before the snails
can eat it all. It may be a silly question, but I want to make sure
before I do so. Thanks for the link on picky puffer feeding. I've
read it. Pete doesn't have a problem with other dead foods. Loves
squid and bloodworms (dead, of course) and will even eat some greens
(macro algae). He also gets mealworms (live) and snails when I have
them available......I'll try the chopstick trick and see if I can
get him to eat clams/oysters that way....or maybe I won't need to
now that I can use Coquinas. Speaking of feeding him live foods....my
backyard is Roly-Poly Central (Woodlice). I think I read somewhere that
these are okay to feed him. Just double-checking with you. Are they?
<I feed them from time to time to GSPs and other puffers, but they
are not among their favourite foods and seem not to be very tasty.>
There are no pesticides that we use, so they should be okay in that
regard. Our sprinkler system does use water that isn't potable,
though. <You can rinse them and freeze them if you are feeling
unsure.> By the way, I called the Florida Fish and Wildlife
Conservation Dept and was told that I could remove 20 clams/crabs at a
time without a license. Yeah! <That's good news. Very good you
called.> Hey, where's your picture under the Crew Bio section?
I've seen Jeni on her Harley and Bob in his leopard print wrestling
tights (eeeee hehehehe), Anthony with his beanie and goatee (you ROCK,
Dude); plus pictures of other crew members. But no Marco.....! What
gives? I'm just sayin', is all. <I'm very shy and
reclusive.. just kidding. Will send a picture to Bob if needed. Until
then you can find a picture on my homepage
http://www.geo-lichtenberger.de.vu/ , click at Zur Person.> Thanks
again, Corinthian. <Not much to do here for me, but lots of good
information for other GSP owners by you. Thanks for writing. Great how
you care for Pete. Marco.>
Breeding, fungi or alien phenomenon? Gastropod repro.
11/08/07 Hi Guys! Tried to find an answer on your awesome site but
it's hard to phrase the problem I'm having! But I'll give
it a try! So, I emailed Sabrina a few months back coz my two common
goldfish were fighting. She told me this was normal and that it could
be the start of them showing breeding behaviour which totally matches
with the other info I've recently found. However, I was cleaning
out my tank the other day and found small, clear bubble like things on
the little ornaments and along the top of the tank at water level.
<Ahhh! Snail eggs likely> At first I thought they were just
bubbles but they weren't - they were solid. Anyway, concerned it
was some sort of fungi I removed them all from the tank and did a full
clean to eradicate any trace of them, although considering the
behaviour of the fish I started to think maybe they were fry?!?
<Mmm, no... not fishes> (They did try to eat them and they have
been chasing each other a lot...) However this seems grossly out of
character in these winter months despite the mild weather here) and
they're not even a year old yet. Do you have any idea what these
clear things were?! So confused! Thanks in advance! Chloe H, London :-)
<You do have snails of some sort... likely Ampullaria/Pomacea...
"Mystery, Apple...". These are the eggs of these. Bob
Fenner>
Litter size for "Japanese livebearing
snails"? Help me, WWM, you're my only hope! <Ah, a Star
Wars reference!> I've recently acquired some "Japanese
livebearing snails"/"trapdoor snails" (/Cipangopaludina
chinensis /or /Viviparus malleatus/ depending on exactly who you ask).
<Apparently Bellamya chinensis now...> I'm a
'snail-head', I got the critters on purpose after searching for
them for quite some time, so the "good vs. bad" issue
isn't a debate here for me. I know the basics about the species
(they like colder water, they're non-hermaphroditic livebearers who
drop live young 1-3 times a year usually in the summer, etc) and I feed
and dose them (iodine and calcium) like my other snails (/Pomacea/,
/Planaria/, and /Asolene/). <Very good.> The one question I
cannot for the life of me find an answer to, is how *many *young does a
female typically drop at any given time? Google, Applesnail.net, and
all my other common resources have failed me. One of mine has actually
already released 3 young snails (and wow they're huge compared to
newborns of my other species). But all I can find is "they
reproduce slower and have fewer young than most snails". Does that
mean roughly 2-3 a batch, 20-30 a batch, 2-3 a year, or 20-30 a year?
<According to 'In utero predator- induced responses in the
viviparid snail Bellamya chinensis' by R.S. Prezant, E.J. Chapman,
and A. McDougall the exact number depends on various factors including
levels of predation. Where predators are present these researchers
found the snails produced more, generally smaller but variable babies.
In each tank they put 5 adult snails. In the control (no predator) they
got between 5-20 offspring per week. Where "crayfish scent"
was added to mimic a predator, they got between 10-60 offspring. (You
might want to read the PDF of this paper yourself, just to check I
understood the graph right.) Either way, it doesn't seem these
snails are nearly as productive as Melanoides.> Thank you so much
for your time! Best regards, Diana <Hope this helps, Neale>
Mysterious (Not Mystery) Eggs 5/3/07 So, I have quite a
snaily tank, I have a large number of little Ramshorn snails & two
, maybe four mystery snails. I say maybe because two days after I got
my two newest alleged mystery snails I have discovered an unusual
clutch of eggs. They don't look like the eggs my Ramshorns leave
& they certainly aren't mystery snail eggs. I can't get a
good picture of them, but they are rice grain shaped yellowish dots in
a water droplet looking sac about two centimeters above the water line
on the glass. <Are very likely Mysteries/Ampullaria> The whole
thing is about as big as a clutch of Ramshorn eggs but there are many
many more eggs in this than there are in that of a Ramshorn. I was told
they could be common pond snail eggs, <Do you have these snail
species as well?> but unless one of my new mystery snails are really
something different then I don't know if that is the case. Can you
help. <A pic would be useful> -Thanks Jen <I would remove
them... with a sharp single-edge razor blade if you didn't want
more... Bob Fenner>
Mystery snail? Tons of Babies! -
04/20/07 I bought one golden snail a few months ago and now it has
had at least 40 babies. There have been no eggs they just show up the
size of pinhead. <Quite probably not the apple (Pomacea sp.) snail.
These snails lay bright pink egg masses the colour, size, and shape of
raspberries. The eggs are laid *above* the water line, usually on the
roof of the aquarium. So if they're there, you'll see them! The
babies are around 1 mm or so across when they hatch, and look exactly
like small apple snails.> Since there is only one snail how is it
reproducing? How can I control it? <Apple snails are dioecious, that
is, there are male and female apple snails and they must mate before
the female can lay eggs. While it is certainly possible your snail is a
female that was fertilized before you purchased her, you would have
surely seen the egg mass before the baby snails. Far more likely that
these baby snails are just regular snails, maybe Physa sp., that have
come in on aquatic plants, in a batch of live food, in the water with
some aquarium fish, or maybe even stuck to the apple snail.> Thanks,
Katie <Cheers, Neale>
Whose Eggs? Goldfish? Not attached 2/5/07 <Hi Rob,
Pufferpunk here> Our goldfish, Sally, has been with us nearly 4
years now. With your help, we have grown together and learned a lot,
even bringing her back from a near death water quality experience early
in our young/naive relationship. <Fantastic! They can live into
their 20s if cared for properly.> Today, while cleaning her tank, I
noticed many egg-looking items attached to the air tube and filter
intake. They are clear, colorless spheres about 1 mm in diameter and
pop when squeezed. Are they indeed eggs? <Sounds more like snail
eggs. Any snails in there?> I should note that Sally has always
lived alone in her 12 gallon tank. pH = 7.4, NH3 = 0.0, Nitrite = 0.0,
Nitrate = 20 - 30. <I'd aim for nitrates <20. GF are very
messy fish. Adult-size fish should be kept in a tank much larger, like
30g.> Any danger of this being some weird parasite? <Doubtful>
She continues to eat well and seems healthy except for a small sore
that developed on her lip a few weeks ago but that seems to be healing.
She finally resumed digging in her gravel the last day or two. This is
her favorite activity but she had abandoned it for awhile, I assumed
because of her sore lip. Also while her lip sore was new, she would sit
with her mouth right up to the filter intake for long periods of time
(but not a current behavior). <Melafix should help her lip.>
I'm not sure how much of this info is relevant. Bottom line is that
I found some eggs in my goldfish convent and I'm positive that a
male rogue has not been climbing the walls for nocturnal visits. Is
this normal, anything I should be doing? <Larger tank & in the
meantime, larger weekly water changes. Most serious GF keepers do 90%
weekly. ~PP> Thanks, Rob
Snail gestation 11/12/06 Hi, I was looking on the web for the
length of a snails gestation. It is a brown and black snail that I
bought at a fish store to control algae. I have my tank in a sunny room
so algae was out of control. I was very excited to find 3 spots where
eggs have been laid. How long before I see a hatch? thank you barb
<Mmm, some species a couple of weeks... others up to a month or so.
Bob Fenner>
Snail Reproduction 9/4/06 I have two snails, I think that
they are Mystery snails but I'm not sure. A few weeks ago we
noticed two more little babies, and then today when I was looking in
our tank I noticed two more smaller babies and a whole bunch of little
tiny worm looking things. My question is what are the stages of the
baby snails and are all these little worm things more babies. <Not
likely the latter> ( They are all moving so I'm pretty sure that
they are living.) FYI: We have a fresh water tank with only three fish
and the two (now 6) snails. <Please read here: http://www.wetwebmedia.com/FWSubWebIndex/fwsnailreprofaqs.htm
and the linked files above. Bob Fenner>
Snail Eggs - 05/17/2006 Okay I live in
Eastern PA and I caught two tadpoles (bullfrogs) and a snail. All fresh
water. Well my husband cleaned out the cage yesterday and well today I
noticed it was kind of foggy and stuff I thought maybe he put too much
food in it. But now I see our small brown snail laid eggs. <The eggs
are likely not the cause of the "foggy" look; you will
probably need to test your water quality urgently. You can read more
about water quality and tank maintenance on WetWebMedia. http://www.wetwebmedia.com/FWSubWebIndex/fwmaintindex.htm
> He is no bigger then my pinky nail. She laid them on the side of
the tank a little above the water. <This may give some insight as to
snail species, but without seeing the animal or knowing exactly what it
looks like, I won't be able to tell you what it is. You might try
looking at http://www.applesnail.net/ .> Now my
question is we don't have another snail in our tank. So will they
get fertilized or were they fertilized when laid? <Actually, MANY
freshwater snails practice hermaphroditic self-fertilization. Your
snail's eggs are likely fertile. Only a few are actually male or
female and need one of each to reproduce.> And is it okay for me to
clean my tank? <Oh yes. A necessary thing to keep your livestock
healthy. Again, please read on WWM for more information to help you
along.> Oh and she keeps crawling on them or beside them and it
making little air bubbles. I don't know what that means but thought
I'd add it. <I'm not sure why, either, especially not
knowing what species it is.> Please answer me by sending an email
this is very important! Yours Truly ~Missie <Wishing you and your
future snail babies well, -Sabrina>
FW Strange things?
4/3/06 <Tom> I have a 74g freshwater aquarium, fully cycled
with angels, tetras, clown loaches, sharks, Corys and snails (apple,
golden and blue). I found a strange thing while vacuuming the bottom
and wondered if you might know what it was. It was about the size of a
large marble, crunchy feeling, pinkish in color, and it's
consistency was like that of a honeycomb, or beehive, with pinkish
interiors. Was it snail eggs? My mother found the same sort of thing
attached above the water line behind her power filter. Please let me
know if you have any idea? <Sounds, indeed, like you found a snail
clutch. Your Apple snails will deposit eggs either above or below the
water line so I believe your "guess" is correct.> Thanks,
Cindy <Any time. Tom>
Getting Into FW Snails, I'm Telling
You, I'm Gonna Post It! 12/10/05 Hi, My 5 year old son is
getting into fish and snails... hence that means that I am getting into
them as well! We bought two snails for our freshwater aquarium. They
are about the size of a quarter. How do you know who is the male and
the female? < Hard to tell. Males are said to have a rounder shell
opening.> At PetSmart, they have about 25 snails in 1 clear box with
a wedge of zucchini in it, and long (arm-like) tentacles were coming
out of some of these snails.... I mean, seemed as long as the snail
itself, almost like he had a garden hose in there! I imagine that that
was a reproductive organ of some type? (male or female... who knows?) I
could take a guess, but might be wrong! :-) < The appendage is
actually a snorkel for breathing and both sexes have it.> The
questions are: How can you tell male/female? What was the long thing?
Do snails eat raw zucchini? < In the wild they do not come in
contact will zucchini. Years ago an aquarist figured out that this
could be used as feed to herbivorous aquatic animals.> Do snails
need an aerator in the tank? < Not really but they will do better
with a clean aquarium.> Background info: (We started a fish tank
after Hurricane Charlie in Florida.... we live across from a lake...
during Hurricane Charley, we lost power, and the sewer didn't
pump... so the water from the lake came up through the sewer drain in
the middle of our street, and formed a puddle in the front driveway. We
thought they were tadpoles... and many were , so we raised them... but
we wound up with 5 one-inch long transparent looking fish... who have
managed to survive from tap water and a filter in our 10 gallon
aquarium. (They also have lake sand, and some plants that we have
bought at the fish store. ) They even had babies, but they ate the
babies before we learned we had to separate them. So, now the snails
have been added to this.... I just bought an aerator, but perhaps this
could kill them all? < No .> Do some fish need low oxygen?
<You can not provide too much oxygen with an aerator.> Can too
much oxygen kill them? < Too much of anything can kill. But this is
not a problem in the aquarium.> I could never imagine being a fish
owner... or a snail owner.... but this is kind of neat.... (We even
bought them a castle in the tank! ) Thanks! (You don't have to post
this on your website if these questions are too basic or silly)
Nathalie Day < We post everything!-Chuck>
Tired of Reading? Snail Eggs Hi Sorry to trouble you, I no
longer have the energy to keep reading to find my answers. We have an
established tank with 2 Oscars, 1 small yellow unknown and 4 yellow
snails (species unknown also). Recently we found 2 growths near the
roof of the tank (out of the water). I thought it was due to bad
housekeeping and promptly removed them however there are now another 2
growths back same area but situated differently. They appear to be
cylindrical in shape, about 3cm long and 1 cm width and depth. They are
a brown/white colour and there are a lot of round "bubbles".
We do regular testing and all levels are normal however our snails do
venture out regularly above the water line - I'm just assuming
they're adventurous. Upon assuming this, I'm also hoping that
these "growths" are snail eggs? If not, what? If so, any idea
how long before they hatch? Would love to see them before the Oscars
eat them. On a side note, when we first introduced the snails, it was
quite a sight to see one of the Oscars suck on a snail and take it to
the other side of the tank. I thank you very much for any feed back you
can give me. Kind Regards Trish < Those are indeed snail eggs. The
Oscars probably won't eat the eggs but will try and eat the smaller
snails.-Chuck>
FW Snail reproduction Ok, I bought a gold and a black mystery
snail a couple weeks ago. If they laid eggs, would they have been at
the water line? <Yes> And if the eggs hatched, what do the new
born snails look like? <Like small versions of adults, light
tan/brown> I'm seeing 5 or 6 very small, mostly clear snails
with good sized antennae, with shells that curl off to one side instead
of just being very vertical like the nuisance snails that take over
your tank. They might not be mysteries, as I have Frogbit that I put in
there when I got the big snails, so they could've come with that
(after all I found a dragon fly larvae in it too). Or they could be
from the big mysteries. I just need to know what new born mysteries
look like. Thanks! Get more from the Web. <I suspect these are
Mystery young. Bob Fenner>
Breeding Snails Hi Chuck Thanks so much for replying. If I
was a week later I could have answered my question - I actually got to
see a snail laying eggs! It was the most amazing thing to watch and I
most definitely feel for the poor girl having to be there so long.
Anyway, I have 2 more questions for you please. I know that the snails
lay their eggs outside the water and that it will be around 4 weeks
before they hatch. What I'm worried about is that 5 clusters of
eggs have fallen into the water and sunk to the bottom of the tank. Is
this normal and if not is there anything I can do? Thank you once
again. Trish <The clusters should remain dry until the eggs hatch.
Sometimes the materials used for hoods like plastic, glass and metal
don't make very good repositories for snail eggs. In the wild they
lay their eggs on vertical stems of aquatic plants. Try placing a few
branches of driftwood in the back of the tank to see if the females
will lay their eggs on it instead next time.-Chuck>
Apple Snail Info The other day I bought a large apple snail,
and I mean large. But after having him (or her) for about a week
he's full of antics and great fun. Climbing all over stuff, and
he's very fast for a snail. But I might be interested in breeding
them. So my question is, do they actually have male and female sides to
the species, or should I just get another snail and they will do their
thing? < Apple snails do have male and female sexes. The difference
is very slight but you are suppose to be able to tell from the spiral
on the shell. One of the sexes spiral is supposed to be more
pronounced.-Chuck>
Snail Breeding Tank for Puffer food 5/28/05 Hi Crew. <Hi,
Pufferpunk here> Thank you for your wonderful website. I've
learned so much from you. <You're very welcome, that's what
we're here for!> I'm getting ready to set up my first
"big" 100 gal aquarium, and have been reading your site every
day for about 3 weeks. I haven't even made a dent in it. I have two
juvenile figure eight puffers. I also have a 2.5 gal "snail
tank" for them. I put in 6 1.5 centimeter snails, and waited for
babies. Finally, after much agonizing, they've laid 3 batches of
eggs! Once the eggs hatch and I have a reasonable
"infestation" of snails I'd like to put something in this
tank with the snails. It looks empty and sad. I was thinking maybe a
Betta or a male guppy, maybe even a couple tetras. That said I do not
want to do this if the fish will eat all the snails, leaving none for
the puffer babies. I was hoping you could advise me if this would be
okay. <I have kept a Betta in my 2g snail tank, with no problems.
Just keep an eye on the water parameters & make sure the tank stays
nice & clean for the Betta. Congrats on your snail breeding
success!> This question is less important and I am just curious. My
husband is an automation engineer. He thinks changing the water in a
tank is inefficient. He seems to think that nitrates could be removed
from water using an "ion plate." I told him I had never heard
of such a thing. He responded "It should work. I wonder if anybody
is doing it. He asked if you all had ever heard of such a thing. <I
am not familiar with this "ion plate" but there are many
products on the market that claim to remove nitrates. The fish are
still living in a toilet bowl, no less...> PS Pufferpunk was so
helpful in teaching me about my "babies" that we decided to
name them after her. They are Pufferpunk, and Pufferpink aka
Pufferpigger :) <Awwww shucks, I'm honored! At least your
"human" children aren't stuck with that name! ~PP>
Eggs (FW snails) Hi sorry to bother you again my cousin
has a 20 freshwater tank setup...In it is a pair of Scissortails, pair
of neon tetra's iridescent shark, Pleco, 2 red claw crabs, 1 large
yellow snail & 2 Chinese algae eaters...& today she found a egg
cluster & we can't figure out who it goes with. I was hoping
you could help us...I've included a pic for you to look at...Please
help So, we know what to do: Thanks Again!!! <Do you have one or
more "Mystery Snails"? This looks like a batch of eggs that
they produce. Please see here: http://www.wetwebmedia.com/FWSubWebIndex/fwsnails.htm
Bob Fenner>
Breeding snails for puffer food (03/10/03) hi
there! <Hi! Ananda here on the puffer patrol tonight...> I am
considering breeding snails to feed my spotted green puffers. <Good
idea.> Can you tell me what the best type of snail to breed would
be... <I use the small nuisance snails that are free from most fish
stores... some are small rams-horn snails, others are round with a bit
of a taper on the end. Avoid the ones that are cone-shaped.> How
many snails I need to purchase initially... <Purchase? None,
hopefully. I'd take as many as the fish store will give you,
depending on the size of tank you have.> what size of tank/container
they should be kept in... <As small as a gallon, depending on how
many snails you want and how many puffers you have -- I have a 5.5
gallon tank as full-time snail farm.> Whether it needs
filtration/aeration... <Yup, and water changes, too -- though you
can use the old water from your puffer tank as new water for the
snails.> And does it need to be covered? <Only to keep the
evaporation down. You don't have to worry about the snails crawling
around outside the tank. My snail tank is open-topped.> your advise
is greatly appreciated! Irene <A couple of other tidbits: you
don't need any substrate at all in the tank. In fact, using
substrate will just make it more difficult to get the snails out. Do
vacuum the crud off the bottom of the tank when you do a water change.
And you will need to feed the snails -- old fish food, frozen/thawed
vegetables, etc. --Ananda>
Apple snails Hi all!!! Hope everything is going okay for you
tonight!!! <So far so good, I'm about to get off work and go
pickup my car from the body shop. WOOO HOOOO.> I have a quick
question for you. I guess I'm among the minority who actually like
snails because I can find no info on them other than how to kill them:(
<You should meet my girlfriend, best form of snail control ever, she
would hand pick them out of my plant tank every day and keep them as
pets.> I recently bought three nice big apple snails to help control
an algae problem in my 120 gal cichlid tank. They've done a
beautiful job cleaning up the tank and also love to crawl along the
surface and suck down cichlid pellets and Spirulina disks. They are
just so neat to watch!!! I'll never be without one or two again!!!
My question is this....One of my snails laid eggs on the inside of one
of the aquarium lids about a week ago. The bright pink eggs are in two
clusters and they are very hard and dried out. I was wondering, are
these eggs going to hatch??? Or are they dead because they're dried
out?? <Its possible, apple snails like to lay their eggs out of the
water.> My 3yr old and 5yr old peek in there every day and keep
asking me when they're going to hatch. But I'm sure with your
help, I will be able to answer their question shortly. Thank you for
your time, Kristen <Well Kristen (whoa my girlfriends name is
Kristine, maybe those whose names begin with K have a thing for snails,
weird.) have I got a link for you, just found it when searching for
apple snails, should answer most of your questions. Best Regards, Gage
http://www.applesnail.net/
>
Snail gestation Dear Crew, Hi, <Good morning!> I would
like to know when the gestation period for snails are. Due to the fact
that my teacher has an aquarium in our classroom and no one knows how
or why but all of a sudden there were massive snails in the tank. So
what we would like to know is how long their gestation period is. Thank
you much, The Class <Its hard to say for sure without knowing the
exact species but take a gander at http://www.wetwebmedia.com/FWSubWebIndex/fwsnails.htm
and the related FAQs. These pages should give you lots of info.
Ronni>
Re: Snail gestation These snails Have a Cone shaped shell.
These are the shells most commonly found on beeches in New York State.
They are Cone shaped and spiral. <This describes several different
types of snails so you'll have to do some research and see if you can
find your kind and their gestation. The link I sent yesterday is a good
starting point. Ronni>
Very vague snail question Is there any way to protect snail
eggs from predation? <Well, I guess first of all, it would depend on
what kind of snail you're talking about.... Are you asking about a
freshwater snail? Pond or aquarium? Or a saltwater snail? What kind or
species, if you know? Or is this question a follow up on a previous
question/answer? Although there isn't much information for me to go
off here, the easiest answer I can give you is to physically separate
the eggs from any predators in the system, either by moving them into
another system or by containing them somehow, perhaps. -Sabrina>
Snails 11/02/03 <Hi, Pufferpunk here> I have a small
aquarium with one Betta and one snail in it. The snail has been in
there for several months. Yesterday I came home to find the snail dead
and two baby snails crawling around. I guess my question is, how did
this happen? <I think that you probably didn't notice the snail
eggs or the hatchlings until you noticed the dead one. What food are
you offering the snail/s? Are you adding a little extra food than just
the Betta will eat? Obviously the babies are tiny, so they may get
enough food for now, but I offer mine algae wafers once/week.> I
just find this very strange. Thank you for your time. Joyce
<You're welcome--Pufferpunk>
Baby Snails This summer my daughter found a large snail in a
local lake and brought it home to place in her fish tank. This was done
about June. Today we noticed at least 8 babies about 1/2 the size of an
eraser. I'm assuming the snail must have been pregnant when it was
found. Currently they are in a small fishbowl and I don't know if
they should be separated or they need any special care. This was not
found in saltwater and their are two fish in the tank with them.
>>Hello April, congrats on having babies :P I don't know what
species of snail you found, but chances are they are a cold water
species (whereabouts do you live?) The further north you are, the more
"coldwater" your snails are. All I can recommend is to feed
them regularly with fish food, keep them relatively cool, and do
regular partial water changes, just like you do for your fish. Perhaps,
if you are interested, you can try to find pics and a scientific name
for them online. Best wishes! -Gwen<<
Snail eggs I got two Ramshorns snails last Wednesday and put
them by themselves for a couple of days to make sure they would live.
One is a golden color the other is the stripped kind. Then I put them
in a small two gal tank with two Corys. Yesterday I saw them stuck
together and now today, I have a egg sack stuck to the glass. I have
three questions. 1. Should I keep the water level above the eggs?
>>Not sure. Here are some snail websites: http://www.mtbaker.wednet.edu/harmony/ditch/ramshorn_snails.htm,
http://www.applesnail.net/,
http://www.naturegrid.org.uk/biodiversity/invert/snailram.html.<<
2. How long will it be, before they hatch? >>I am not
sure.<< 3. Will the Corys eat the eggs or the babies once the
hatch? >>Chances are good that they will eat them, yes. Check out
the websites, I hope they will help you. :D<< Thanks W.D.
>>You are welcome. -Gwen<<
Breeding Mystery Snails I have a five gallon aquarium with a
Betta, 2 ghost shrimp, and 1 black mystery snail. Now I want to add one
or two more mystery snails because i heard they breed very quickly and
that Betta's like to eat young snail is this true? Also I really
want to add a pair of angelfish but I worried about weather or not the
Betta will get along with the angel fish will he? He is fairly docile
spending most of the time hiding behind a plant in the corner of the
tank, and the rest of his time slowly swimming in circles. Any way what
do you think? Thank you, Aren M. Dowden <<Dear Aren; Here is some
info I took from a snail link: "Black Mystery Snails usually breed
with little encouragement as long as their environmental conditions are
optimized by the time they are more than four months old. Black Mystery
Snails lay their eggs underwater. You should provide some plant or rock
to which they can attach these eggs, which are usually deposited in the
form of a slimy material. Some of these snails have also been observed
to lay eggs in tan egg cases on land areas. Clutches usually consist of
more than one hundred eggs that will hatch in 10 to 14 days. It should
be noted that it is very difficult to distinguish males from females,
and many people often believe, erroneously, that they are
hermaphrodites for this reason." You can read the rest of the page
here:
http://www.centralpets.com/pages/critterpages/fish/freshwater_inverts/FWI4995.shtml
I find your 5 gallon tank is a bit fully stocked. I hope you will do
weekly water changes on this tank to keep the nitrates low, since
snails that size eat quite a lot. That means they produce a lot of both
solid and liquid waste...also, you will need to supplement their
feeding. You can feed them sinking foods (sold for bottom feeding fish
like Plecos), fresh spinach leaves, and frozen beef heart every now and
then (found at your LFS). If you find your snails a bit too big for a 5
gallon, you can always try pond snails, the little snails that you
usually find attached on live plants. They will reproduce quickly, and
stay much smaller than the mystery snails, but pond snails will eat
live plants. Do NOT add angelfish to this tank. You are already at your
stocking limit, and angelfish need room to grow, a twenty gallon tank
is the minimum tank size to grow out angels properly. For angels,
taller tanks are better, by the way. A nice tall tank will give you
adult angels with nice, long finnage. I've seen too many adult
angels with stunted fins to advise otherwise.. Good luck.
-Gwen>>
Ivan the Terrified - 07/26/2004 I believe the last crew
member I spoke with was Sabrina. This is an update email and a question
about Black Mystery snails. <Holy Mackinaw, I'm SO sorry on the
delay!> I am the proud and indulgent Momma of a spoiled Pink Kisser
named Ivan the Terrified. <I could never forget.> I wrote back in
January about a rash-type condition on his tail which is now cleared up
completely. <Ah, delightful!> He's up to about 5 inches long
and is much less hand-shy. Per your suggestion I added several plastic
plants and some floating live plants to the tank (name of it escapes me
just now but it is vine-like with patches of 6 leaves growing from the
main stalk every 1/2 inch or so). <Sounds like
elodea/Egeria/Anacharis - a great munchin' plant. How's he
liking his new digs?> After a few weeks I had a bad algae bloom that
I couldn't get a permanent handle on (10% water changes every day
for 2 weeks did almost nothing: I'm guessing a nitrate jump from
the leaves dying and the change in fish poop), <Could be. You may
have ended up with Elodea canadensis, which is a coldwater
Anacharis-type plant; it tends to die instead of grow, in aquaria.
Though, I would guess Ivan at least helps with cleaning up the plant
scraps?> so off I hiked to the fish store and invested in a Black
Mystery snail named Bubble. Before I knew it, I had pin-head sized baby
snails crawling around on the glass which I removed to a 2 gal.
"nursery" tank. The woman at the store said "they're
a self-breeder" (which makes little sense in a practical
application because even the hermaphroditic ones can't breed with
themselves, can they?), <Many/most snails will self-fertilize. One
turns into very, very many, much to some plant keepers' chagrin!
Though, they CAN cross-fertilize, too. A few, like the apple snail,
require a male and a female to reproduce.> but my research said that
they're opposite sexed (shell door concave= female, convex=male) or
hermaphroditic (sources argued) and shouldn't breed if there's
only one in a system. <Umm, if I understand correctly (and after a
brief jaunt at http://www.applesnail.net , I'm
sure I don't), they do indeed have genders.... Please consult that
website; there is SO much info there, it's just unbelievable.>
With a 10 gal and only 1 fish, 1 snail should be plenty to maintain the
system. <Er, until Ivan gets a foot long ;) But until he gets too
big, yeah, the snail should' a been fine.> Then, Bubble died.
I'm pretty sure that was of "old age" since she was over
3", what the store said is the max for that kind of snail.
<Yeah, that's a pretty good sized hunk o' escargot! (Which
reminds me.... have you ever SMELLED a dead snail? How can folks EAT
that?!)> I figured then that my snail population was down to the
babies I had, which I found homes for except for 1 that I kept for
cleaning purposes. <Sounds appropriate.> Now, I've researched
the heck out of these things and I can't get a definitive answer
about sexing and breeding and the snails keep coming. <Again, please
consult http://www.applesnail.net for more
comprehensive info. I believe there's even a forum there.> The
baby born and raised in my system, Pot Sticker, is up to about an inch
across the shell doing all her normal snaily things (concave door and
floating around on top of the water munching on a leaf), but I have a
pretty steady population of snails between almost-can't-see-'em
pin head sized and big enough to pick up with tweezers and take out of
the tank. How the heck did they get here and why don't they stop?
<Umm, it's sounding like these are NOT apple/mystery snails.
Though, it may be that you got some pond snail eggs in on your
plants.> I pick them off the glass (which I feel bad about but
I'm afraid they'll clog the filter) when I see them. Supposedly
my Kisser will eat them and if that's the case I really don't
have a problem, only I've never seen him eat any. If I stop giving
him his tropical flakes for a few days would he start going after the
snails? <He may. Don't feed him for several days (he can take it
- especially if there are plants around) and see if he starts
pickin' 'em off.> I don't want to use chemicals to get
rid of them since I'd like to keep Pot Sticker healthy and it
wouldn't be good for Ivan either. <I agree. I would just remove
them manually. One way to do so is to place a some pellet food or a
slice of blanched zucchini on a small plate in the tank (shielded from
Ivan, if possible) just after lights-out. In the morning, remove the
plate - it should have a bundle of snails on it.> Am I still just
being a paranoid first time fishkeeper? <Yes. But that's a good
thing :D > I haven't tried taking Pot Sticker <Pot Sticker? I
bow to you, O Ye of Great Names.> out of the tank either because I
don't want my algae to get out of control again. Any suggestions?
<Just as above.... I would try fasting Ivan first - but that's
just 'cause I don't like killing things except to be eaten....
I'm weird like that.> Thanks in advance, Becky <You betcha -
glad to hear how Ivan's doing!! Wishing you, Ivan, and Pot Sticker
well, -Sabrina>
Unknown snails in FW tank I've been reading up on the
various snails that sometimes sneak their way into planted freshwater
tanks and I'm left a little confused. I understand that it's
impossible to tell most snail's gender, but I'm not sure if it
only takes 1 snail to turn into a million little copies of itself, or
if it still requires two. <Some species are monoecious ("one
house"... hermaphrodites, both functional sexes in one
individual), others are dioecious...> Reason I'm asking is
recently two such specimens showed up in our 20g tank, we quickly
plucked them out and put them into an old 10g for quarantine.
They're not the same breed by any stretch, one looks like a
Ramshorn and the other is some form of smaller apple snail from what I
can tell. In any even... they've been there for a few weeks
munching away on algae and we've seen no signs of breeding or eggs.
Is it safe to put them back into the display tank? Thanks! ~Mike~
<Always a bit of a risk... these may reproduce still... but then
again, you may still have more snails to come from wherever these ones
originated! Bob Fenner>
Re: Unknown snails in FW tank Thanks for the info!
Unfortunately you were right, another Ramshorn popped up in the display
tank. No less than an hour after putting it in the quarantine there
were eggs on the glass. <Ah ha! And like most humans, I do greatly
enjoy (the rare occasion) of being "right", or actually
hearing same. Heeeee! Do take a read re our take on FW snails:
http://www.wetwebmedia.com/FWSubWebIndex/fwsnails.htm
and the Related FAQs (linked, in blue, at top) You may want to employ a snail
eater if these gastropods get to be "too much". Bob Fenner>