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Deep water zoas melting. Only deep water ones.....


ninjamyst

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I have over 40 types of zoa in my 12 gallons tank. Recently I lost all the deep water ones. Scrambled eggs, LA Lakers, Safecrackers, Darth Mauls, Hawaiian PEs (not sure if these are deep water...), and some other ones. I know "deep water" is a marketing scheme, but it seems like the more expensive the zoa, the easier they melt. My other zoas are doing awesome. Armor of god, magician, watermelon, bam bam, and more are growing new polyps all the time. I have nudis but I pick them out as much as I can. I even isolated the ones that were melting into my other tank that does not have nudis. What's going on?!?!?!

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Ive had a few zoas melt for no reason at all, one day they look great then never opened again. I know this is of no help but you're not alone.

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I have over 40 types of zoa in my 12 gallons tank. Recently I lost all the deep water ones. Scrambled eggs, LA Lakers, Safecrackers, Darth Mauls, Hawaiian PEs (not sure if these are deep water...), and some other ones. I know "deep water" is a marketing scheme, but it seems like the more expensive the zoa, the easier they melt. My other zoas are doing awesome. Armor of god, magician, watermelon, bam bam, and more are growing new polyps all the time. I have nudis but I pick them out as much as I can. I even isolated the ones that were melting into my other tank that does not have nudis. What's going on?!?!?!

I think you know the drill. What are your water parameters (numbers), location of the melting ones (are they all near each other or not), what else lives near them, and possibly the most important thing is, has anything about your tank changed just before this started.. Oh yes, one other thing. pics of the affected corals.

 

I know that you are experienced but it never hurts to remind ourselves that more information leads to a better diagnosis.

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I think you know the drill. What are your water parameters (numbers), location of the melting ones (are they all near each other or not), what else lives near them, and possibly the most important thing is, has anything about your tank changed just before this started.. Oh yes, one other thing. pics of the affected corals.

 

I know that you are experienced but it never hurts to remind ourselves that more information leads to a better diagnosis.

 

I will get water parameters tomorrow, but I tried putting them in high light low flow, high light high flow, med light high flow, med light low flow. Sadly most of the them have melted so no pics. Nothing has been changing in my routine. Things are pretty stable right now. They just close up all of a sudden, and then slowly start to get smaller and smaller with mat receding, then poof. Gone.

 

I was hoping there's just some known care requirements for these more expensive zoas that I am missing.

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Nano sapiens

I haven't tried any 'deep water' zoas in years because of what you described. Now I have no more room left, so that eliminates the temptation to try again :)

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I have nudis but I pick them out as much as I can.
Sounds like a pest is a viable explanation. When acquiring all of these zoanthids, it's easy to introduce a pest. And talk about an environment perfect for a pest that preys on zoanthids. Could be nudibranchs, could be something else, could be more than one type of pest.

http://www.zoaid.com/index.php?module=Gallery2&g2_itemId=384

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When I first set up my frag tank something started irritating the zoas. Everything else was fine, it was just the zoas. One by one they started closing up and I thought I was going to lose them all. I tried blowing them off with a turkey baster, moving them around the tank (different flow, light levels). Finally as a last resort I dipped them all in peroxide. Within a day or two they all started opening again and have been fine since. Ended up only losing my emeralds on fire, so I'm thinking they were the ones that brought in whatever the culprit was. I don't know if it was some kind of bacteria or what. Nothing that I could see. Could be you have something similar and the hardier zoas aren't bothered by it. Wouldn't hurt to try if you have another colony that starts to close up.

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