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My Corals Dying? 3/11/07 Hi WWM, <<Hi Maison.>> Three nights ago I noticed that my hammer coral was dying, the part that died turned into slime and it stays on the rock. The same thing happened to my frogspawn coral 2 weeks ago. Do you know what it is? If you know what it is can you tell me how to treat it? Reply quickly, it is my favourite coral in the tank and I don't want it to die. <<Please use the WWM search feature, and look through the numerous articles on Coral Diseases. Try searches for RTN, rapid tissue necrosis. Much information is there for your use, if you'll only look for it.>> Thanks, Maison <<Enjoy the learning. Lisa Brown.>>
Re: Brad in Basalt writing in panic. Scler. hlth. 2/6/07 I understand your point. And, I feel so confused. This coral looks very much like Goniopora lobata photographs I have seen from the Philippines. <We're in agreement> Yet, a close inspection of the coral polyp reveals only 12 tentacle tips. <About right... for... which genus?> As a matter of history, this coral started from a few small polyps that hitchhiked in on the Florida gulf-side maricultured live rock <?! Not from FLA... or the Atlantic> that was the first part of our original shipment from Tampa Bay Saltwater. I will try to photograph the coral when it is fully retracted (e.g., after a hermit crab campout), and perhaps this will give more information to go on as the structure is starting to form a rising mound from the center of the colony (what may be the start of a "finger"). Thanks again for your wonderful site. Brad <A mystery for sure... Bob Fenner> Xenia and Bubble death?? 1/27/07 Hello, <Greetings! GrahamT here.> I have had a 26 gal nano reef going for over a year now with a nice bubble coral, two types of hammer-heads, some green star polyps and a yellow star colony. A few days ago I bought a pulsating xenia (about four stalks attached to a rock) and now at day 3, some of my tank seems on the decline. The second day with the xenia, I noticed my large pink snail (no idea what type he is) was sucking on the bottom of one of the stalks. The next morning I awoke to that stalk completely gone and a neighboring stalk cut open and melting on the rock. The other two are thriving. It seems to me that snail probably did this, but that's not even the worst of the problems. Today I come home and my bubble coral (which is usually big and beautiful- never had a problem with it) is closed up tight and even seems to be retracting from its skeleton. The most disturbing thing was a hermit crab was on top of it ripping into its flesh. I was wondering if perhaps having the ripped open xenia in the tank still is causing my bubble to die, is that a possibility? <Not likely, no.> The rest of the tank seems to be doing fine, everything else is eating and acting as usual. The only other changes I made within the time frame of getting the xenia was lowering the water temp (I noticed it was a bit high when I added it, now its at 74 which is the usual) and we relocated the green star polyps. <74 is a bit low by my reckoning. I would go with 77-79, depending on how much your temp fluctuates during the light-on hours. > Any advise on this would be greatly appreciated! <Xeniids are (as a rule) passive, unpredictable specimens. People report their success on both ends of the spectrum - either they have so many, they want to get rid of them, or they can't keep any alive. I would firstly suspect the green star-polyp is using it hefty arsenal of chemical weaponry here to attack the Xenia. This might be hurting the bubble, too, given the small system volume, though I would be interested in the hermit crab's actions in this case also. GrahamT.> Thanks in advance, Alyssa Schladt A question about our hard corals, all of which are beginning to bleach out 12/30/06 Justin, I have a question about our hard corals, all of which are beginning to bleach out. I have been doing some reading on your site and researching some journal articles that debate the question of light vs. water movement being best for hard corals. Naturally both are ideal, but our problem is that our light creates warmer water and the warmer water ( I believe) has led to bleaching out of our plate, trumpet and brain corals. I just moved them farther away from our "spotlight-feature area" -which we created in hopes that the corals would thrive - and in line with more intense water flow instead. DO you have any suggestions for us besides spending more on lighting (which we cannot do in the immediate future)? Thanks for your input, Justin. We have come to rely on the wisdom of your website! Gloria <Hello again, Gloria. Nothing really stands out from your description to me, however you don't list what lighting you currently have. Without knowing this, I can't begin to assume what could be causing the bleaching. For starters, do research some of the specific care of your corals. Specifically, your plate may be having problems due to improper placement, if its been kept in rockwork. See here: http://www.wetwebmedia.com/fungiidae.htm as a starting point, and get back to me with some specifics as your current water test readings, temperature and lighting. Hope this helps! -JustinN> Brown Jelly 12/25/06 Hello, and merry Christmas. I recently had a brown jelly infection on a Goniastrea brain coral which I moved to a separate tank and cleaned the coral regularly. It seems to be gone although much of the coral seems to have died or possibly just receded and may come back. My question is how contagious is brown jelly disease as I am worried about other corals "catching" the disease? <Is a good question... there are instances I'm aware of where both situations... isolation and spread occurred... the etiology of this "condition" is not entirely understood> I recently added a Acropora Tortuosa which today I noticed had some "goo" stretching between polyps in a couple of areas. Rather that worry about what it was I decided just to break that part of the coral off to prevent it from spreading anywhere else on the coral. <Good idea... This is what I would have done at least> The coral was is rather small anyway and it wasn't all that expensive, so I'd rather just dump it than worry about spreading infections. Can all corals get brown jelly infections or is it mainly just the LPS corals? <All can... larger polyped species seem more susceptible> My water quality is good and all other corals are healthy. Water parameters are: ammonia 0, nitrite 0, nitrate 5, alk 10.6 Dkh, calcium 400, Ph 8.3, salinity 1.024, temp. 78. I have been doing a ton of reading about brown jelly infections and even wrote Eric Borneman regarding the brain coral and followed his recommendations. My main concern is the infection spreading throughout my tank, does brown jelly mainly attack corals that are unhealthy? <The latter> Sorry this email was a little scatter brained, I am a little freaked out about this spreading as I would lose a lot of corals and the money I paid for them. Thanks, Ryan Nienhuis. <Thank you for sharing. Bob Fenner> Strange encrusting coral... actually strange lack of info. query 11/6/06 Hi, Newbie here. Not real good at maneuvering the site yet, but I checked everywhere I thought appropriate, both on WWM and internet, and could not find an answer. I will not bore you with complete tank set up for ID question. I have a 4 month old Fox Coral, <The Euphylliid?> that started a few weeks ago recessing. It gets fed regular and seemed very happy with its tank location Med flow and high in the tank under 40 watt PC. I looked closely and found what appeared to be a brown flatworm. I think, I have finally located enough photos to say this is some sort of Cyphastrea ocellina or crusty star coral. <?... the Faviid?> It is tan in color. I can find photos, but no information on this thing. It seems to be growing very fast. Does my conditions seem favorable for such coral? <Which? Actually your lighting is a bit low for either> Is it harmful to my fox? Is it LPS, SPS, or what? <What? The Faviid? See WWM re...> Should I try and remove it from the fox coral and if so how, or.......is the fox going to die (skeleton exposed) and I should let it have the space for encrusting? Thanks in advance for your help. Cindy <... Where is information re water quality? Maintenance, feeding?... Please... read what is archived on our site for these species. Bob Fenner> Coral Gall Crabs 7/31/06 Dear friends. I have a project in Biology due on the gall crab. I have been unlucky when it comes to researching it. Will you please post something on your website regarding it. thanks. Sincerely. Erica <Mmm, try inserting the string: "Coral Gall Crabs" in the search tool on WWM. Bob Fenner> Nudibranchs/Ceratosoma tenue 5/15/06 Hi Crew, <Hello Mohamed> This weekend I found 10 Nudibranchs which looks like the Ceratosoma tenue on the site. All my new corals are dipped before placing in my display tank. At the time of removing some sick corals for a dip, I found the Nudibranchs which I removed but yet all the corals did not survive. I would assume that the Nudibranchs was feeding on the corals. I am sure there are more. I have used a trap but have not caught any as yet. Is there a fish, invert, etc that can be used to feed on the Nudibranchs but must be reef safe. <None that I know of due to the fact of their nasty taste. Bob may know of a predator and hopefully inject something here.> <<Nothing specific. RMF>> Most Nudi's are carnivores and each species usually has a particular victim. Victims are immobile invertebrates such as barnacles, zoanthids, anemones, hard corals, etc. I'd pluck them out by hand to be on the safe side.> <<Or siphon out. RMF>> Thanks <You're welcome. James (Salty Dog)> Mohamed. Green brain coral... health, env.? 4/25/06 Hello, My green brain has over the past few months been separating from its skeleton and as of yesterday is now no longer attached. It looks huge now but I know this is not a good thing. What should I do to save it? Scott <...? What re history, set-up, water quality, other tankmates... Read: http://wetwebmedia.com/marine/inverts/index.htm Scroll down to the Stony Corals tray... Bob Fenner> Frogspawn & other various corals ... health, sys. - 03/26/2006 Hi I am currently having a small problem with my frogspawn and my maze brain coral. My setup is an 80 gallon peaceful reef with metal halides (double ended) actinics and moon LEDs. Last week I installed the LEDS and I also left the glass off of the tank on the right side. The brain has since had a mucus coating and does not open up very much. I blew off the mucus the first day and thought that I had "burned" the coral. <Reads like this> The frogspawn has about 6-7 different colonies I guess you could say. They have been opening up huge until I left the glass off but they are not directly under the light. Now only 2-3 open up and maybe only get about halfway to what they were doing. All of my water parameters are the same and I add a full regiment of Kent additives. I also have a leather that is on the opp. side of the tank and it looks waxy and no polyps are coming out like they used to. My LFS said that they do this to expel waste and algae, etc. <This is so... you want to remove this waxy material once it is shed> every once in awhile. I guess that my main question is how can I help my frogspawn and brain back to good health. I am very appreciative of your website and all of the help that it provides. Thanks, Dustin <Please read here: http://wetwebmedia.com/acclimcoralslight.htm and the linked files above. Bob Fenner> Flatworms On Hammer Coral - 03/21/06 I just recently received
a small hammer coral from a fellow reefer. The whole thing
including the plug would fit inside of golf ball. It's
very small. <<Indeed>> I just noticed some small brown
flatworms on it today. I didn't know what they were
until I tried to pick them off with a pair or tweezers. The
problem I'm having is that the flatworms are on the tentacles and
every time I try to pick them off the tentacles retract. I
can't siphon them off or I'll damage the coral. I
want to get them early before they infest my tank. <<Likely too
late, they have probably already spread. Quarantine could
have prevented this.>> What can I do? I really need
your guy's help, I can't think of anything. Thanks
in advance for all your help. <<You can try giving this coral a
temperature and pH adjusted freshwater dip, though be aware this
process is not without peril (do a search on our site re for more
information...you can start here: http://www.wetwebmedia.com/dips_baths.htm). Regards,
EricR>> |
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