High Tide Aquatics

My Zoa keep melting

Sundara

Supporting Member
Hi everyone any body have experience with Zoa? Only Zoa keeps melting every day.
My tank almost one year old.

Ph 8 or 9 by API test
Salinity 1.025
ALK. 12 been like that about 2 months
Po4. .5
No3. 10
Mp40 been running 50%
Light 10 h/d
 

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That's an iodine based dip, which works by disinfecting the coral. You can try it, and it may help. If anything comes off during the dip, take a picture please. There's always the chance that there's zoanthid-eating nudibranchs or other pests.

What @Song was talking about is hydrogen peroxide, the household chemical. If you want to use it you'd have to get unscented and follow some instructions online, but it's pretty cheap so it's worth a try
 
I would do both h2o2 dip, then rinse with tank water then Seachem Reef Dip after. Carefully observing for anything that comes off in either dip.

Also I would look into changing what salt you use so that you can lower your alkalinity level. 12dkh is very elevated and not recommended to keep tanks at that high of an alkalinity level. Can it be done successfully? Yes. But everything is "on edge" at that high of alkalinity and should only be done by very experienced "professional" reef keepers and even then it's a risk.
 
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