why are my zoa dying

[Bayside Corals]

Bring in a water sample we will double check it for you. Your test kits might be off.

I have seen tangs eat corals before that is a possibility. You may also have a zoa eating pest like nudibranches or spiders.

But if other corals are not doing great either I would say a fish is eating them or its a water issue.

Colby