any updates on this? I have the same issue, I still have no fish though, my tank is months old and only have cuc in it. I do not feed my corals.
I, just like you, have a few zoas, 1 acropora, 1 montipora, and all look faded, bleached. have all water parameters in check.
So I'm probably thinking my issue is not feeding them. thought that with the hermit and snail poop would be enough.