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Torch Coral 5/31/2010 Weird frogspawn coral question... likely burned by a Galaxea neighbour 3/6/08 Good Evening, <Am here now for me> I have scoured this site and the internet for two weeks now with no answer to this puzzling question, although you guys have answered my 10,000 other questions without me even having to ask. Its all here for the taking. <Ah, yes> All comments on my methods/system are welcome. Anyway, back to the problem at hand. I have a frogspawn coral which I purchased three weeks ago and it is losing tentacles. About one tentacle is lost from each of its five polyps each day. <Mmmm, bad> The tentacles constrict at the base and eventually pinch off completely and float away. Otherwise, the polyps look fairly good. They extend each day, close at night, and eat mysis shrimp every other day. Also, the polyps are not receding where they attach to the skeleton. I suspect that this may be a response to the different lighting I have them under, as the colors are becoming richer as the days pass. <... could be> The store used 14000K 175 watt or 150, I forgot) metal halides, with about 7 watts per gallon. I have two 100 watt 6700K screw-in compact fluorescents, which give me 12 watts per gallon. I have used these bulbs on the tank since it was created 14 months ago; I have replaced them once already. I suppose some other background info will help also. The tank is 16 gallons, tiny, but I have failed twice with larger ones. I have about 40 pounds of live rock <! not much room left for water> in there with 3.5 inches of crushed coral substrate. I am using a sulphur based denitrification media in the lower layers of the substrate. <Mmm, this could be...> My protein skimmer is a SeaClone 100, which I have had for years and I like it due to its simplicity. I use no other filters. Parameters are as follows: SG 1.023 Temp 80F pH 8.3 Ammonia 0 Nitrites 0 Nitrates 0 never a problem because of the reduction of NO3 <Need to have some...> KH 10 Ca 450 ppm <A bit high...> I do about a 25 percent water change every week with a peristaltic pump to add water at the same time I remove it. I realize this is not as good as removing water then adding, but coral placement does not allow for it. I actually add a 5 gallon bucket of new water made from Oceanic salt mix, but some is removed due to the simultaneous siphoning out of tank water (the 25% I roughly calculated). I do not supplement any trace elements, as I perform such frequent water changes. <Good technique for small volumes> I also do nothing special to keep the parameters as they are. I do top off with RO water which has been remineralized with 10 micron powered aragonite and a dose of "purple-up" from CaribSea. <I would discontinue this immediately> Water flow is medium too low for the frogspawn and is multidirectional. It is placed lower in the tank, about 10 inches from the lights. Other livestock: 1 galaxy coral, rapidly growing, opposite side from the frogspawn <D'oh! Oculinids are very "stingy"... THIS is most likely the cause of trouble here> 1 Kenya tree, also growing, <Secondarily allelopathogenic...> 1 orange Fungia, 2 inches across, doing great on the sand bed. various mushrooms, Zoanthids, a little anthelia 1 green banded goby 1 Firefish 1 yellowtail damsel 1 brittle star snails and crabs All of these are long term inhabitants having been in the tank longer than 9 months (except the frogspawn). None of the corals have direct contact with each other via sweeper tentacles. Any suggestions, comments, and criticism is welcomed, as I want to solve the disappearing tentacle problem. Best Regards, Ken <Oh, I see by your titling below you have some life-science backgd.. There are a few possibilities, sources of potential loss of vitality that you hint at... But definitely read here: http://wetwebmedia.com/cnidcompppt.htm and the linked files above. Bob Fenner> Dying bubble coral... Poor system and species mix 9/26/07 Good Morning Crew. I wanted to thank you for all the valuable info you provide, without it I would be lost! Here is my question though. We have a 40 gal. tank with 1 3" maroon clown who hosts in our Condy, <A poor match... will likely kill this Caribbean animal with growth, time...> a lawnmower blenny, a Mandarin goby, a Magenta Gramma, a Pajama cardinal,, 4 astrea snails, 4 hermit crabs, Various polyps, and a Bubble coral. <Quite a blend... these last two are not compatible in such small volumes> There is about 35 lbs. of live rock, and 2" to 3" in. of live sand. We have had the Bubble coral for about 5 months, and up until a month ago it was doing great, looked extremely full, and all calcified parts were completely covered. It is now slowly retracting from it's rock and is down to about half the original size. <Not surprising...> where it looked like it had three separate mouths, it now only has two, and one is totally shriveled up. It also has some reddish brown spots on some of it's bubbles, but it still has a healthy appetite. Please help, I don't know what is wrong! <Cnidarian allelopathy> Temp between 79and 81 Specific gravity 1.024 PH 7.8 Alkalinity ideal Nitrites 0 Nitrates a little high ( 40 ppm on quick dip test strip?) <Need to be at most half this> but the nitrates have been at this level the entire time the tank has been here ( 1 year, running 4 years total) Thanks for your time, any input would be helpful! <Read on... start here: http://www.wetwebmedia.com/cnidcomp5.htm and the files above... the search tool, indices... You need to re-think your stocking "plan"... Read about the needs/systems and compatibility of what you have, intend to keep... What you have now is untenable. Bob Fenner> PLEASE HELP ASAP!!! Ammonia spike!!! Cnid., Anemone incomp. 9/30/06 Hey crew. I need your advice. I have (maybe had) a 29 gallon reef with a 15 gallon refugium. I was gone for 2 days and came back to see I had a bubble coral looking like it had died twice! I removed it, and took a water sample. Ammonia was .25 ppm. Well, I just so happened to be out of salt and needed to wait till the morning to go get some. All of a sudden... white slime (looks kinda like mucus) come off of everything. Every piece of live rock, every mushroom... everything. I tried syphoning as much as I could. <Yikes> I ran and got an old Fluval and threw some carbon in it and ran it for the night. <Good try> I woke up the next morning to about 10 dead mushrooms, a dead hammer coral, and a rose bubble tip <... incompatible> that was not looking good at all. I removed all of them.. <Best... but not back together... the root cause...> and noticed lots of goo coming off over every part of the anemone. So, ... as I tried not to freak out, but rather act quickly..... I went as fast as I could and got some salt. I did a 10 gallon water change right then, and had to run into work. I cam back from work and did a water test and the ammonia was 1.0 ppm. I was at a loss of what to do. I contacted my LFS and asked what they recommended. I was instructed to do a very very large water change. <About the best stop-gap measure> I changed 21 gallons of the 29 or so (less cause of live rock) and left the water that was in the refugium. I added a bag of live sand and mixed it with the sand currently in there hoping not to destroy all the helpful bacteria. I then added 21 gallons of freshly made water and added a packet of bio-Spira marine. Before the water change... everything looked like they were saying good bye to life... now they look like they want to fight to live. I have a strange feeling this large of a water change will cause the tank to cycle again. I was hoping to defeat this fear with bio-Spira.. but only time and your advice will tell. I did a full water test. Here are the results: Ammonia - .25 (maybe .5, holding the test tube looks like both of them. More so the .25 but I guess I should error on the side of caution) Nitrite .05 Nitrate 5.0 Alk 2.9 Ph 8.4 Ca - 300 Salinity 1.026 Please give me some advice on what to do. Anything and everything I can do. I was planning on doing another 8 gallons tomorrow to try and lower that ammonia. Are the benefits of doing the change worth the risk of further causing the tank to cycle? I am soo lost and need your help. Josh Henley <Mmm, something "caused" the initial stress/reaction of the one Euphylliid... very likely something to do with the presence of the Anemone... cascade of bad-events after this... Please read here: http://www.wetwebmedia.com/cnidcompfaqs.htm and the linked files above, particularly re Anemone Incompatibility with other Cnidarians. Bob Fenner> Air pockets in coral Hi Bob, I have a cup coral and a frogspawn and they formed air bubbles/pockets inside the coral. The cup coral one day formed a hole and some of the air escaped but another area still has an air pocket. this hole seems to be spreading. the frogspawn is still ok but still has the air pocket. what should I do and what causes this? <Could be an infection... but more likely a dysfunction of these animals Zooxanthellae... the endosymbiotic algae... they're being overstimulated, otherwise being overactive, producing too much gas> how can I prevent this and will this cause the demise of my coral? <Depends on the cause/s... I would be checking my water chemistry, supplement practices...> I also have a anchor coral that one day seemed to not extend and now 90% of the tissue deteriorated. I'm not sure why since everything else seems to be doing well (xenia, bubble coral, Fiji leather), capricornis, scroll. I'm running 110w pc for 10hrs at night in my 30gal. please advise, thanks in advance for your time Jackson <Yikes... a thirty gallon with all these disparate life forms in it? An "answer" to the cause of your troubles is the mis-mixing of these incompatible types of cnidarians... you might be able to get by with chemical filtration, very frequent water changing... but there is likely a great deal of chemical and physical interaction going on betwixt all... and some are winning... others are on the other side. You need a larger tank, and/or to separate some of the stony from soft corals. Bob Fenner> Unhappy hammer- coral aggression My hammer coral was looking good until I placed a purple torch next to it. They were about 2.5 inches apart, I increased the separation to ~4 inches. <very good move but not enough. The "rule" is 6-10" minimum between all coral... more between aggressive species. These two coral mentioned are VERY aggressive (modified tentacles at night and chemical exudations shed> The hammer's polyps are semi-retracted, sometimes completely retracted. Both corals are stetting on rocks on the bottom of a 29 gal tank. I've had the hammer for about two months, everything was fine, its been about four days since I got the torch. What should I do? <more space and good water flow. Aggressive skimming and weekly changes of carbon will help temper the aggression too. Best regards, Anthony> Bubble problems.. <cheers, Brett> Hello Wet Web Staff,
> I have a problem with a Plerogyra sinuosa. It was doing
great for a period of a year or so. It has been a gracious host to a
clown fish for all of that time. <ouch... Scleractinia hosting
clowns usually means trouble for the coral. Repetitive and unnatural
abrasion of soft tissue against its own skeleton from the guest
(clown). Wounds and tissue recession are inevitable in time> From
readings on your site I found that I haven't been feeding it
enough, but it was being fed periodically cut pieces of whole shrimp.
<yes... please do feed minced (smaller pieces) several times weekly
for the coral doesn't consume itself (attrition) in time> It
also always gets floating brine shrimp that go uneaten by its finned
tankmates. <Hmmm... adult brine? Very hollow food (almost no
nutrition here... animals starve to death on this.). Try Mysis shrimp
instead. Many other possibilities too... Gammarus, Pacifica plankton...
anything but brine shrimp!> My problem is within the past week the
bubbles are separating from the base. <not good indeed> The coral
still balloons and otherwise looks normal. It's just that half of
it is free from the stony base. What's your prognosis?
<it can survive... will take a few months... the clown must be
removed and food particles have to be 1/4 or smaller (tiny) to prevent
internal damage> I'm hoping maybe this is normal, however,
I'm doubtful since I see no other queries stating this type of
problem. <correct, my friend... it is not a good sign at all.>
Tank chemistry parameters show no anomalies in any readings and are all
within ranges that are considered healthy. The tank has been running
for years with no real changes in chemistry. Lighting is 4 96 watt pc.
bulbs two actinic two bright, running 12 hours a day. The
specimen is located about 12" below the surface, midway up a live
rock wall and has never been moved. <all good as per above... must
have been starvation or abrasion from the clownfish> Thanks for your
time. Brett <best regards, Anthony> |
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