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FAQs about Acroporid Coral Compatibility

Related Articles: Acroporids, SPS Corals 'Coral' Compatibility: On Reducing Captive Negative Interactions Cnidarians  by Bob Fenner, ppt. vers: Cnidarian Compatibility: On Reducing Negative Cnidarian Interaction Parts: 1, 2, 3, 4, 5,  by Bob Fenner

Related FAQs: Acroporids 1, Acroporids 2, Acroporid Identification, Acroporid Behavior, Acroporid Selection, Acroporid Feeding, Acroporid Disease, Acroporid Systems, Acroporid Reproduction, Stony/True Coral, Coral System Set-Up, Coral System Lighting, Stony Coral Identification, Stony Coral Selection, Coral PlacementFoods/Feeding/Nutrition, Disease/Health, Propagation, Growing Reef CoralsStony Coral Behavior,

Tribal Blenny (soon to be on Survivor TeeBee?) ID   12/21/2009
I've just recently obtained a "Tribal Blenny". I've found that it is a relatively new fish to the hobby and I am having trouble finding its taxonomic nomenclature. It is an algivorous blenny and one website says it is collected off of Sri Lanka. I've found one online vendor that labeled it simply as Atrosalarias sp..
<Mmm... have seen this (mis)labeled as Atrosalarias namieyi... and even I believe misplaced in the genus Ecsenius:
The genus Atrosalarias, of course, contains A. fuscus, the black Sailfin blenny. My tribal blenny does resemble some photographs of black Sailfin blennies but it seems to be markedly different. Most noticeably, it has bright blue markings on the face and body that are always present (not just when exposed to light, stressed, or photographed). (I will include several photographs as attachments to this message. The photographs were taken without a flash.)
If you could assist me in properly identifying what species the tribal blenny is, I would greatly appreciate it.
Thank you for you time.
Merry Christmas,
<I don't know, don't see this fish on the Net in reliable ref. or in my in-print works. My present best guess is that it is a color variant (geographical form) of Atrosalarias fuscus. Let's put on WWM and see what folks say. Bob Fenner>

Re: Tribal Blenny 12/22/09
Hello Bob,
<Welcome Ian>
Thank you for your prompt reply! I have been leaning towards it being an Atrosalaris fuscus color variant as well. I will post it on the forums as suggested.
<I have done so on WWM already>
Unfortunately, I've noticed that in addition to grazing on turf algae, my tribal blenny has nipped at my red Montipora capricornis. Of the many SPS corals in my tank, this is the only one he has seemed at all 'interested' in (possibly because it is nearest to the crevice that he frequents).
<May well be>
I've moved the coral and I haven't seen him go near it for a while. I really hope this is not to be a common occurrence as I really enjoy this fish.
Thank you again for your assistance!
<Certainly welcome. BobF>

Re: Tribal Blenny, ID and now comp. f'  12/23/2009
Hello again Bob,
I thought I'd give you an update on the tribal blenny as per its SPS nipping. Unfortunately it has really damaged one of my Montipora capricornis. It also took a few bites at a Montipora digitata. I have various varieties and species of Montipora in my tank and also a few Acroproa, Anacropora, miscellaneous LPS, miscellaneous soft corals, and a Tridacna crocea clam, among other things; Of these specimens, the blenny only nipped at two colonies (the M. capricornis and M. digitata). However, I certainly did not give the blenny time to become interested in any other
(After tearing apart my tank to catch it) The blenny is now in a small holding tank. I will return it to the reputable vendor I purchased it from.
I would like to set up a specialty tank (without SPS corals) for this fish, but I do not have the means to do so at this time. The coloration and demeanor of this fish are exceptional.
<A happy fish... perhaps if you had a huge system with lots of Montiporas... it wouldn't be damaging too many>
Regardless of these happenings, I am still very interested to discover the exact taxonomy of this blenny. Please keep me informed. Thank you!
Merry Christmas,
<We accrue all. BobF>

Acropora Care/Feeding -- 04/23/08 Hello again Crew, <<Greetings>> Well, I've decided to not go with the clownfish-anemone-tank plan and rather create a peaceful community of Gobiodon citrinus with a pair of Stonogobiops nematodes <<Both neat little fishes>> and maybe another peaceful fish. Anyways, I have a few questions. 1. As you might know, I've been planning on culturing phytoplankton and copepods. My tank is 86g with a 35g sump. Starting out with, say, a 4" Acropora frag, how would I feed it phyto? Target feed? Dumping bottle of phyto into the tank? <<Phytoplankton is of no direct benefit to the Acropora as they are decidedly carnivorous'¦though it can be beneficial in small doses to feed those organisms upon which the Acropora will feed. Better to feed the Acropora foods like Rotifers and Cyclops-Eeze (can simply be the 'leftovers' from feeding the fishes), and install an inline plankton-generating refugium>> 2. How would I feed copepods to the prawn gobies? Target feed? Dump them in tank? <<These can be simply 'dumped in the tank' as you state>> 3. Would I ever have to feed the clown gobies? <<Yes>> 4. Approximately how many coral heads should I have per goby? I'm thinking about having four pairs of gobies in my tank. I have around 125lbs of LR. <<Mmm'¦will take several LARGE colonies. My experience with these fish and Acropora is not a good one. While these fish are found in association with Acros in the wild, the confines/limitations of captive systems do pose problems re. Maybe yours will be different, but in my experience these fish tend to nip and irritate the Acropora to the point they will not extend polyps and slowly decline in color/apparent health>> Well, that's it for now. I sent an email titled "copepod culture" to you on Thursday and have yet to get a response. Just a reminder. <<Hmm, this should have been returned by now'¦you may want to resend>> Anyways, once again, I love your site. It's simply awesome. <<Thank you'¦a collective effort>> Thanks in Advance, Random Aquarist <<Happy to share. EricR>>

Montipora capricornis Compatibility 03/31/2008 Hey Crew. <<Good Morning, Andrew today>> I hope the mice aren't playing too much while the cat is away. I have a "professional compatibility opinion" question for you. I was in my LFS today and noticed a very nice (4" wide and 6" long) coral that I believe to be a Montipora capricornis. (See attached picture--do you agree?). <<Agreed>> This coral is in the "all corals in this tank are $25" tank. I couldn't believe the LFS is selling this for only $25 as I've seen similar corals demanding much higher prices, so I asked one of the clerks why it was so cheap and he said that they are trying to get rid of it because it's been at the store for over 2 weeks with no takers. He tells me that it is an aquacultured "cup coral" that doesn't have the coloring that most people like. This coral would look great in my tank, so I came home and did some research on compatibility and am a little concerned about its ability to survive/thrive given my other animals (mostly, my Corallimorphs). I have a 110 gallon display with 95 lbs of LR and a 30 gallon refugium (DSB, 10 lbs LR, and large clump of Chaeto). Lighting is 2x250W HQIs (20,000K) driven by 2 IceCap ballasts and 4x65W actinic PCs. My circulation is about 15 x per hour between my return pump and my internal power heads. My coral livestock list is as follows: Corallimorphs (positioned throughout my tank): 8 small green hairy mushrooms on one rock 8 medium green Rhodactis mushrooms on one rock 1 small purple Rhodactis mushroom 14 small red mushrooms spread throughout my tank 1 medium orange Ricordea mushroom 3 small cream colored mushrooms on one piece of Tonga branch Soft Corals: 2 large colonies Pulsing Xenia 2 large Capnellas 1 large Dendronephthya (9 months and thriving!) 1 large red pipe organ (Tubipora musica) LPS: 1 Pacific Open Brain (Trachyphyllia) 5 polyps candy cane coral (Caulastrea echinulata). I run two 1-cup portions of activated carbon in my sump that I change out every 2 weeks to help reduce any allelopathy. At $25, this isn't a huge investment by any stretch, but I don't want to purchase this coral only to put it in an environment in which it won't thrive or survive. There is an empty spot about half way up my tank that is in a relatively high-flow area that would be a perfect spot for this coral. What do you think? <<Given enough space / distance between this and other corals, I see no reason why you could not house this in your system>> Thanks for your insight/thoughts! Andy <<Thanks for questions, hope this helps. A Nixon>>

Re: Montipora capricornis Compatibility 04/01/2008 Andrew, <<Andy>> Someone opined to me that this coral is a Merulina ampliata, not a Monti cap, but the pictures of Merulina that I've been able to find don't resemble this coral. However, after reading WWM and elsewhere, the ridges on this coral make me wonder whether it may be a Merulina, but . . . Any thoughts on the proper ID of this coral and, if a Merulina, any difference in your original opinion that it should do okay in my display? Closer pic is here: http://i262.photobucket.com/albums/ii81/abulgin/DSC_0654.jpg <<Ampilata do not roll up as the Monti Cap does. Its a more flat plating coral. I will stick with Montipora Capricornis>> Thanks again! Andy <<Thanks for the follow and query. A Nixon>>

Re: Montipora capricornis Compatibility -- 04/1/08 Andrew, <<Hello again>> Thanks for the reply. This picture is what got me thinking maybe we were wrong: http://whelk.aims.gov.au/coralsearch/html/201-300/Pix/240-02.htm <<I still feel confident of this being a Monti cap. If you review the following photo's of the Merulina ampliata, to me, I can see the difference..  http://www.reef-guardian.com/fiches-coraux-pic-76.html ..Flat, not rose, higher pronounced ridges.>> <<Thanks, A Nixon>>

Montipora capricornis damaged or diseased... Cnid. incomp., plus?  1/20/08 Hello. <Pam> I've had my first tank up and running for 9 months. I have a couple soft corals (1 rock with mushrooms and 1 rock with zoos), and several LPS corals (Duncan , Sun Coral, Frogspawn). I decided I was ready to try my first SPS and from what I read and from what I was told, Montiporas are some of the easier SPS' to start with. <Mmm, can be> I purchased a good sized Montipora capricornis about a week ago. I didn't notice this until I got home, but there is some tissue missing (see attached picture). Is this diseased, or was it damaged in shipping to the LFS, or from the LFS to my home? <Could be, but...> The white spots, have now turned brown. I thought it was spreading, but I just looked at the 2 attached pictures, and compared it to the Cap, and it seems that it hasn't grown at all, just that it turned brown (algae??). Do I need to trim this off this damaged / dead tissue, or leave it alone? <I would move it or...> If I do need to trim this now, or down the road, would I use a razor blade, bone cutters, or what would cause the least damage? <The polypoid animal to the lower left...> I have the Monti Cap about half way up in my tank, and the light fixture is about 12" above the water line. <About right... for what you have...> One last question, do you dip all SPS corals, and if so, a fresh water dip or a coral dip? <Mmm, no...> Any coral dip recommended over another? <Posted on WWM. I have used, instituted use of iodide/ate/Lugol's dips in slightly dilute spg water for receiving stations on arrival... for wholesale, collecting stations...> Parameters: Salinity 1.026 PH: 8.3 Alk: 8 dKH Nitrites, Nitrates and Ammonia all zero. Phosphates: between 0 and .1 Calcium 390 Magnesium 1170 Temp 80f Flow: 25x display size Display lighting 150w 10k Metal Halide and 4 24w T5s Thanks, Pam <Pam, there may be other input/s here, but the proximity of the polyp in the pic is definitely an issue. Please read here: http://wetwebmedia.com/cnidcompppt.htm Bob Fenner>

Crab ID Needed -- Acropora Commensal! 1/19/08 Hey, guys and gals -- 3rd letter this week! <Yay! What can I do for you today?> I bought my first piece of Acropora coral and I was pretty excited. <Understandably so, they're beautiful corals!> Well, guess what? A little buddy hitchhiked his way on the coral! He's pretty much all off white with a bit of blue-ish purple on his shell. <Yep, I've seen this little guy's kin before. They're neat little crabs.> He looks nice and was snuggled in the branches of the Acropora frag but I have no idea if he's a good guy or bad guy. If he's bad, I would guess it'll have to be the sump for him until my refugium gets built! Here are some pictures to help with the ID. Hope they are clear enough! <They are, thanks! I'm happy to say that this little crab is a keeper. Ninety-nine percent of the time, when people write in about hitchhiking crabs, we have to warn them about the potential risk to their livestock. This, however, is the one percent that makes for an exception. What you have is a little Acropora (commensal) crab, in the genus Tetralia. They stay small, and are actually good for the coral. Interestingly enough, in the wild, this crab protects the coral from the voracious Crown-of-Thorns sea star (Acanthaster planci). It pinches the tube feet of the star and "discourages" it from dining on the coral! I have a link for you to read through for additional information, as well as several others with photos: http://www2.hawaii.edu/~delbeek/afmjan97.html http://home2.pacific.net.ph/~sweetyummy42/hitchcrabs.html http://home2.pacific.net.ph/~sweetyummy42/coral_crabs-2.html .> Thanks, Jon <You're very welcome. Enjoy your new additions! --Lynn> --
Jonathan Philpot


Squamosa Spawn and Coral Bleach = Clam and Cocktail Sauce?    5/21/07 Hey crew! <Hay now brown cow!> Recently I purchased a Tridacna squamosa.  This clam is about 8 inches long and quite beautiful.  I also have an Acropora that was a gorgeous Pink Purple.  The Acro has been happy for months and exhibited good growth.  Recently the Squamosa has released white streams from its orifice.  Immediately my Acro released its zooxanthellae and turned white.  Complete bummer.   <I'm sorry.> All other aquarium inhabitants seem fine at this point.  All water parameters textbook.  I do small water changes weekly. 200 Gallon display 180 Degree Half Cylinder <Oooh!  Niceee!> 70-Gallon Refug 70-Gallon Sump Calcium 400 Nitrate 1 PPM Temp 79 Salinity 1.026 Deep Sandbed 5 to 6 inches Water Turnover 16x random turbulent 80 Gallon water change per month IO DT, Liquid Life, Prime Reef Skimmate 1 cup weekly thick black Tank 1.5 year aged Macro Gracilaria, Chaetomorpha, Red Kelp 6 Stage RO/DI TDS Meter 250-Watt Halides 27 inches of water to top of sand bed Shall I eat the clam? <Would you like the cocktail sauce or do you prefer drawn butter?> MJ <Just kidding ...though they did hunt and gather Tridacna on one season of "Survivor"  Mich>

Acro Crab? Reef Safe?  Yep!   2/22/07 HI crew!!, <Hi there!  Mich here.> Good evening, last week I introduced this Acropora into my system and found this little guy as a hitchhiker.  As far as I have read, asked around and researched, it is an Acro crab and would be safe to leave it there, but wanted to double check with the experts here in WWM.   <It is an Acro crab and is safe to leave.  Enjoy your lucky addition!> Thanks in advance.
<You're welcome!  -Mich>  
Re: Acro Crab? Reef Safe?  Yep!   2/22/07 Thanks for the fast response Mich, so he stays where he is. Cheers! <Welcome!  Keep him there!  Regards,  -Mich> Alfonso Garza

Acropora Aggression -- 11/02/06 Hi WW Crew, <<Hello Bonnie>> I have a 29 G reef tank that is a year and a half old.  I have a loving pulsing Xenia, green frogspawn, and a maxima clam that is growing in leaps and bounds.  It has about a 1/2 inch of new shell growth. <<Neat!>> About 4 weeks ago I added a small anchor head coral and a small Acropora.  The Xenia, frogspawn and the new anchor head coral are all somewhat retracted, and, obviously, not as happy.  The clam is fine.  Is the culprit, if any, the Acropora? <<Doubtful...as aggression/toxicity goes, the frogspawn and anchor coral rate much more highly>> I tried researching about Acropora aggression, etc. but could not find anything. <<Acropora species are 'generally' on the losing end when it comes to coral aggression in the mixed-reef home aquarium...although A. Millepora will often prove to be quite 'nasty'.  I would look more towards water quality/flow issues as well as 'placement'...if the frogspawn and anchor coral are doing battle, everything in the tank will suffer eventually>> Also, I have something purple that is growing & spreading on one of the rocks.  It is about 2" x 1".  It is fairly thick and soft, and I'm thinking it's some king of sponge. <<Possible>> What do you think it is? <<Impossible to say, but may well be an encrusting sponge...do try a keyword search of our site, the net in general re marine sponges and see what you can find>> Sorry I do not have a picture for you.  Thank you for any comments. Bonnie <<Regards, EricR>>

Butterfly Chomping On Corals   8/21/06 Bob, <Scott F. with you today.> Quick question for you - I have a Chaetodon xanthurus in a 110 gallon with about 20 large SPS staghorn colonies. He picks on them quite a few times per day - I imagine eating a coral polyp with every nibble. This causes several of the corals to withdraw their polyps (at least during the day when I can watch). <I can imagine the picking he/she is doing when you aren't watching! LOL.> Will SPS still grow under this condition - i.e. inability to extend their polyps? Will the butterfly eat the entire coral down to the skeleton typically? Best, Kris BerlinMethod.com <Well, Chris, in the closed system with its finite coral population and limited space, it's going to be a serious issue. Sure, the corals can continue to grow if some of them can extend their polyps, but it is not very likely. The constant picking will also cause some other possible problems for the corals, such as disease, and in the event of dead sections on the coral, nuisance algae growing over these sections. Typically, the Butterflies will pick at the coral itself, and maybe pull off some surrounding tissue in the process. Disease and/or secondary predators can complete the job started by the Butterfly. In the end, it's probably better to pull out the corals or the fish if you intend for them to thrive indefinitely. Best of luck! Regards, Scott F.>

Give Those Acros Some Breathing Room! (Coral Placement)   2/2/06 Hi! <Hiya! Scott F. at the keyboard tonight!> I just had a quick question regarding SPS coral placement. How far should most Acropora be placed from each other? I do prune them and make sure they do not touch each other. Is a distance of 3-4 inches enough? Thank you so much! Sheen <Well, Sheen- everyone has an opinion on this one, but I would allow almost 6" plus between specimens. I've done it closer, and trust me- given time and the proper conditions, they'll still eventually grow into each other! Try at least 6", be patient, and you'll be rewarded with larger, healthier, and more colorful corals...Assuming, of course, that you can provide for their other environmental needs! Best of luck to you! Regards, Scott F.>

Monti cap being eaten by perc  12/16/05 Hello, <Hello Dan>      I purchased a frag of a red Montipora Cap about a month ago. It has been doing great and has doubled in size. The last few days, the rim has been all messed up looking, like it fell and crushed a little bit. Then the other day I saw my percula swim up and latch on with his mouth. He wriggled around a bit and then swam back into his sebae anemone about 4 inches away. Upon further examination, I found bite mark in the shape of the Perc's mouth taken right out of the rim. I thought these guys were supposed to be reef safe.... Is the clown going to stop or should I move the coral? <I'd watch it for a while, if the clown still nips, then move the coral.  Unusual behavior for the clown to say the least.>       Also, I have asked this question a couple times now and haven't really got the answer I was looking for. Is it better for my coral to have light from a 265 watt power compact light fixture from CoralLife with 2 day and 2 actinic, or 440 watts of VHO from a icecap 660 ballast with 2 day and 2 actinic. I was thinking obviously the 440 watts, but I have gotten mixed answers every time I ask someone. So if possible, just tell me which one my coral will like more. <My choice would be the Icecap system.  James (Salty Dog)> Thanks for any help you can give me <You're welcome>

Acropora compatibility 7/24/05 Hello again. <Hello ol' buddy ol' pal - Ali here> I have yet another question for you guys. The tank is still not set up yet, but I'm a little confuse about something. Sometimes I would read about not mixing hard corals with soft. Sometimes I would read that it is okay. I plan to keep some hard corals such as a hammer coral and an Acropora. I was just wondering if mushrooms would okay to add into the mix. My first interest in corals were yuma Ricordea and Acroporids, and if the cannot coexist, then I have a little dilemma. <Yes they can. 'Yuma' Ricordea generally are very slow at naturally reproducing in captive environments without forced incisions. Therefore, you don't have to worry about them spreading all over the place and 'stinging' your Acroporids. However, remember that generally across and yuma require somewhat different environments. If you do decide to keep them together, place the Ricordea in lower light, lower-flow areas. Also, many of the more exotic colored yuma that come in are already sick and/or dying. Search around for healthy pre-established specimens if possible. By pre-established, I mean look for fellow reefers who've kept the coral healthy, plump and happy for several months/years and try to strike up a deal with them.> Well, thanks for all the help so far and don't worry, for I will continue to ask lots and lots of questions. : ) <You got it bud, feel free to keep the questions coming - Ali>

Montipora Compatibility Hi, I've had a 50 gal w/75 lbs. LR going for about six months. Corals are two mushrooms, two polyps, pumping xenia, and a devil's hand and a toadstool mushroom leather. Everything seems perfect, water parameters are great. Lots of water movement, great skimmer, etc. Question is, are Montipora digitata compatible with what I've got now? Thanks for your advice. >>>Greetings Brian, I think you should be just fine. Keep in mind though that as things grow, you may run into some chemical warfare issues. You may have to watch that leather, but in the near future, I don't see any issues. Jim<<<

Acropora crab I purchased a table Acropora about 2 months ago. Last week my UV sterilizer  broke and it feel victim to a bacterial infection. My question is about a  small crab that was living in it. Will it die living in a dead coral. I  have a healthy 1 year old Cats Paw. Should I try to remove the coral crab  and place it in with the Cats Paw.  >> I wouldn't... if the crab thinks it can/should move to the (Pocilloporid) Cat's Paw Coral, it will of its own accord... The Acroporid may well still be alive... Bob Fenner

Acropora and crabs Hello, Are the small crabs found in Acropora harmful to the coral? >> Not generally... all else being equal they're of no consequence. Bob Fenner

Montipora digitata 3/3/03 Dear Bob and crew, Guess what!, I've finally found the Anthias that would stay alive in my system! <wow, that's...er, great. Hmmm... if ten die for every one that survives import, and five died before you ... er, never mind. Glad to hear that there's a spark of life in the Onion field> I picked up a 2 inch fathead Anthias and its striving well in my tank, eating heartily and swimming around the tank in open view most of the time. <indeed an excellent species and gorgeous.> I'd like to add an argi angel to my tank but would be afraid that it may pester the Anthias even though it seems to be able to hold its hold in my tank chasing off the royal Gramma and the 2 inch Kole tang....any comments...the argi is not necessary....it was just an after thought to help with some micro algae. <no dwarf angel can eat anywhere near the algae as your wonderful Kole tang, and the C. argi is one of the riskiest coral nibblers among the dwarf angels. I'd pass> On to my real question. I picked up an okay looking brown Montipora digitata specimen which has about 5 sticks going across from left to right. It had a little bit of receding to it when I first got it and I was hoping it would come to a stop. I placed it really high up in my tank, approx 1 inch away from the surface of the water where it could get max lighting. However, it is directly placed next to an individual disc mushroom that is of a pretty good size....I know there is chemical warfare going on here <not a matter of could... it is severe. Corallimorphs are top ten on any list for potency. They don't have to touch... even 6" away is not enough by some measures (6-10" is standard distance for most corals in place to allow for growth and minimize even shed compounds)> but could that be the primary reason this coral has continue to recede..... <almost certainly... Montipora is one of the weakest corals and the 'shroom is one of the worst. Other reasons here too perhaps> little by little from the base upwards, it has started to bleach. Surprisingly, its the sticks that are farthest from the mushroom that are receding.....2 of them.....the rest of the three sticks on the left hand side are doing quite well....polyping out all the time and even starting to grow pinkish purple tips. Should I break off those two sticks on the right hand side to avoid contaminating the left 3 sticks or should I move this specimen of Montipora? or both? <indeed... both please> Any advise would be appreciated! <the best advise I can give you is not mix unnatural groups of coral... especially in a smaller tank. Pick one group (shrooms, SPS, or LPS, etc) and stick with it> To refresh your memory, this is a 40 gallon tank, 16in deep...0 nitrite, 0 ammonia, 0-10 nitrate, Tank is actually rather poorly lit due to only 4 watts per gallon of power compacts 50/50 bulbs which is why I placed the Monti so high up. <understood and agreed> Is it from insufficient lighting? <yes> Should I just stay away from SPS altogether due to the lighting issue? <certainly... this is even modest light for hardy Montipora> I just thought I should try it out because I have researched and the digitata seems to be the hardiest of the SPS and I actually don't mind it being brown in color. <agreed> I fell in love with the SPS after a recent Christmas trip to Thailand and snorkeling in the Similan Islands....have you ever been? <nope... but Bob likely has> Its magnificent! Hope to hear from you soon. Sincerely, jimmy <kindly, Anthony>

Mini Garden Reef Hello, <cheers> I bought a Purple Acropora w/ Green Polyps for my 7 gallon minibow.  Do you think the CSL SmartLite-Retrofit 32 watt http://www.premiumaquatics.com/Merchant2/merchant.mv?Screen=PROD&Store_Code =PA&Product_Code=CSL-SLRF32&Category_Code=CSLr) will provide it with enough light? <seems possible> If it happens to not do well, will there be adverse consequences in my tank? <hard to say... but likely not short of an infectious disease that blossoms from necrotic tissue. Instability is inherent with a tank this small> I house some zoos, xenia, clam, candy cane coral, small tulip anemone, goby, etc. <yikes! The hodge-podge mix of unnatural tank mates in such a small aquarium seems like a bad idea to me in the long term. I cannot imagine the water changes and fragging that will be necessary to pull this off successfully in the long term. Do try to be more specific with stock by group/family> Thank you very much, Anthony  Here is a picture of it: <best regards, Anthony>

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