FAQs about Brown/Phaeophyte Algae/Kelp
Identification 3
Related Articles: Brown Algae, Avoiding Algae Problems in Marine System,
Algae
Control, Marine Maintenance,
Nutrient Control and Export,
Marine Scavengers, Snails, Hermit
Crabs, Mithrax/Emerald
Green Crabs, Sea Urchins, Blennies, Algae
Filters, Ctenochaetus/Bristle Mouth
Tangs, Zebrasoma/Sailfin Tangs,
Skimmers, Skimmer Selection, Marine Algae, Coralline Algae, Green Algae, Brown
Algae, Blue-Green
"Algae"/(Cyanobacteria), Diatoms, Brown
Algae,
Related FAQs: Brown Algae
Identification 1, Brown Algae ID
2, Brown Algae ID 4, &
Brown Algae 1, Brown Algae 2, Brown
Algae Behavior, Brown Algae
Compatibility/Control, Brown Algae
Selection, Brown Algae Systems,
Brown Algae Nutrition, Brown Algae Disease, Brown Algae Reproduction/Propagation,
Marine Algicide Use, Nutrient Limitation, Marine Algae Eaters, Culturing Macro-Algae; Controlling: BGA/Cyano, Red/Encrusting Algae, Green Algae, Brown/Diatom Algae, Marine Algae ID 1, Marine Algae ID 2, Marine Algae Control FAQs II, Marine Algaecide Use, Nutrient Limitation, Marine Algae Eaters, Culturing Macro-Algae; Controlling: BGA/Cyano, Red/Encrusting Algae, Green Algae, Brown/Diatom Algae,
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Marine Aquarium Algae Control
by Robert (Bob) Fenner
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Please ID this coral 3/23/11
Hi WWM Crew,
<Tono>
I have been trying to get some information about this coral
<?... the images sent appear to be of a Phaeophyte (Brown
Algae) of the genus Dictyota...>
to no available, I wonder if you can help me. Pictures are
attached. It's hard and just orange color (not fluor).
My guess would be Psammocora or Pavona.
Thanks for helping,
Tono
<Is this organism inflexible (i.e. stiff?). Reach in the tank
and gently pull/push on it. See the Net re the genus. Bob
Fenner>
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Re: Please ID this coral
3/24/11
Hi Bob,
<Tono!>
Thanks for the reply,
I still have yet to see the 'coral' with my own eyes, as
my diver collected and sent the picture, so I will come back to
you in 1 week time to get clearer pictures and more details.
Regards,
Tono
<Thanks! BobF>
Re: Please ID this coral 4/4/2011
Hi Bob,
<Big T>
Sorry for the delay for getting back to you.
Now that I see with my own eyes, it's definitely calcareous
algae, not a coral.
Thanks,
Tono
<Mmm, thank you for this. BobF>
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Rhodophyta - Chondrus crispus 6/26/10
Hello crew,
<Perry>
Long time reader and first contact with a question, a testament
to the use of the search function and knowledge base available.
I'm trying to identify some algae growing in my tank and was
wondering if you could help. I think
it may be Rhodophyta - Chondrus crispus
<Mmm, no... whatever this is, it is almost assuredly a
Phaeophyte... a "brown"; on the basis of colour... Now
what unifacial, two-dimensional genus does this remind me of?
Have just gone through E(lmer) Yale Dawson's keys...
don't see it>
and attached an image for your viewing. Nothing in my tank seems
to find this appetizing and would like to
identify it. Thanks in advance.
Perry T Acosta
<I would periodically harvest by hand... likely too bitter to
be palatable, perhaps too much of a competitor for iodide in your
system. Bob Fenner>
Rhodophyta -- Chondrus crispus? Possible Phaeophyte:
Dictyota or Dictyopteris spp. - 6/26/10
Hello crew,
<Hello Perry, Lynn here today.>
Long time reader and first contact with a question,
<Yay, bring it on!>
..a testament to the use of the search function and knowledge
base available. I'm trying to identify some algae growing in
my tank and was wondering if you could help. I think it may be
Rhodophyta - Chondrus crispus and attached an image for your
viewing.
<Thank you.>
Nothing in my tank seems to find this appetizing and would like
to identify it.
<Well, judging from the color, I think this may actually be a
Phaeophyte (brown algae) in the genus Dictyota or possibly
Dictyopteris, of which there are many species (and variations in
color). I would suggest an image search at AlgaeBase.org
(http://www.algaebase.org/search/images/ ). Each photo will take
you to another page where off to the right is a link to 'More
information on this species'. Once there, you can proceed
towards the bottom of the page, where you'll find a list of
reported locations. Obviously, it'll help to know where your
specimen came from! I'll just add that identifying algae to
species level can be a very difficult and time-consuming task, so
don't feel discouraged if you can only narrow to genus level.
That alone can be quite an accomplishment! Be sure to also read
through/see Bob's 'Brown Algae' page at this
location: http://www.wetwebmedia.com/brnalgae.htm
>
Thanks in advance.
<You're very welcome and good luck!>
Perry T Acosta
<Take care, Lynn Z>
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Macro Id 3/2/10
Hey guys, I have an algae I'm trying to get an ID for.
Looking at your Algae
ID page I think it's either Sargassum or, Ulva, or Caulerpa.
I'm hoping it's Ulva, what do you think?
<Mmm, actually... does this stuff "feel soft?"... Am
thinking you may have a "green variety" of the
Phaeophyte Lobophora variegata here... can grow as this colour
and size, shape with conditions that lack sufficient
iodine/ide
et al.. See WWM re control. Bob Fenner>
It doesn't grow higher then about 1-2cm and it's about
1cm across. It's growing way too fast and has spread to the
sand bed.
http://s48.photobucket.com/albums/f245/okkiedokki/?action=view¤t=DSCN1343.jpg
http://s48.photobucket.com/albums/f245/okkiedokki/?action=view¤t=DSCN1344.jpg
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Re: Macro Id 3/2/10
I will have to see what it feels like when I get home, but it
does look exactly like Udotea orientalis,
http://www.algaebase.org/search/species/detail/?species_id=3819.
<Is a possibility as well. BobF>
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Name of algae 2/8/10
Dear WWM crew,
<Tineke>
Still puzzling with this algae. It was taken in North Sulawesi.
Is it a Udotea?
<Mmm, no... am pretty sure this is Lobophora variegata. Please
see here:
http://wetwebmedia.com/brnalgae.htm>
There is few to find of this algae beside your site. Thank you
for your perfect site! Very often I'm returning to your site
to look for my algae puzzles..
Thanks you for answering my question.
Greetings from Holland
Tineke Smit
<And you! Bob Fenner>
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Blue Green Algae/Cyanobacteria... Mmm,
nope 11/14/09
Hi Everybody!
I have looked through the archives for identification of an algae
that I am having a problem with in my tank. I do believe it is
Cyanobacteria but, would like a confirmation (see
attachment).
<A nice pic!>
It's not slimy like other Cyanobacteria I have encountered
before. It's slow growing and rather hard to remove from
rock. Could this be anything other than Cyanobacteria?
<Yep>
Tank parameters: ph-8.3, nitrate-20ppm, phosphate->.02ppm,
salinity-1.025. Currently running activated carbon and a skimmer
24-7 in addition to weekly water changes to help combat the
problem. This tank has been established for two years. Thanks in
advance for your time and knowledge.
<Glad to share. Am almost certain this is Lobophora variegata,
a "brown"/Phaeophyte. Please see here:
http://wetwebmedia.com/brnalgae.htm
and above for input on control, etc.. Bob Fenner>
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Macroalgae ID: Dictyota -- 5/18/09
Good day crew!
<Hello Josh!>
This started growing on 2 of my rocks, and I didn't cut it
back because the tank was new and I figured it was at least
helping with nutrient export. It started out as a tiny piece, and
grew into these bushes in about a month and a half. I'm
cutting it back today, but wanted to finally figure out what it
is.
<It looks like a Phaeophyte/brown algae called Dictyota, a
potential nuisance. See info and photos at the following link:
http://www.wetwebmedia.com/brnalgae.htm . Be sure to also Google
Dictyota for more related information in our FAQ's: http://www.wetwebmedia.com/Googlesearch.htm
>
It isn't growing anywhere but on these 2 rocks.
<Good, this stuff can take off on you if you're not
careful.>
I don't plan on cutting it all off, and I want to move these
rocks into my refugium as soon as the refugium is ready. The tips
fluoresce a bluish color under my 20k halides and actinics.
<I've seen this in photos -- very pretty.>
I've been told it looks similar to Ochtodes, but it's not
exactly the same. The pictures don't do it justice - it
really is fairly pretty.
<Yes, indeed.>
Is it a nuisance?
<It sure can be! See the FAQ at the top of the following link,
titled 'Stopping the dreaded Dictyota in its tracks (nuisance
macroalgae control> 9/1/08':
http://www.wetwebmedia.com/brnalgcomp.htm >
Should I keep it going in my refugium?
<I'd opt for something like Chaetomorpha instead.>
My refugium is under 6700k T5's, not halides - will it grow
as well without halide lighting?
<That, I'm not entirely sure about. It may not grow as
quickly. Apparently, it's a mostly shallow water species, but
it's known to inhabit deeper waters (up to 40m). Again,
I'd opt for a safer macro for nutrient export.>
Thanks as always!
<You're very welcome!>
Josh
<Take care, LynnZ>
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New Print and
eBook on Amazon
Marine Aquarium Algae Control
by Robert (Bob) Fenner
|
|
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