a while back my pink diamond zoas were looking bad, I had mentioned that I fragged them and gave them a revive dip. a lot of critters came off, including a ton of worms and many small bugs I couldn't identify. Since then, the frag has not only fully opened up, but multiplied. However on that same rock, my wifes playboy zoas have started showing the same signs. lots of great growth, but the original polyps struggling, some disappearing completely. so I took the entire rock out and gave it a revive dip last night. I'm optimistic that it will have positive results.
the interesting thing with the playboy zoas is that the new polyps have come out stronger and pinker than the originals so I'd really like to see that colony do well. everything else in the tank is doing very well I think.
I have cut back my feedings a bit though. I noticed some brown algae developing on the sand bed, and one of my rocks after I started dosing the reef roids. I did about a 10% water change (and have been doing about 1-2 gallons of water change per week lately on my 40g overall tank) and the brown algae has almost completely receded.
The only complaints I have is I do feel like coral growth is a bit stunted. aside from my huge and beautiful GSP and Kenya trees, I just dont' "feel" like things are growing as fast as they were. It might make sense to get my water tested and see if there are other trace minerals I need to start dosing?