This is the second one I have had. The first one managed to jump out the feeding opening in the lid. Found the poor guy on a Monday morning. I have had this one a week now. Great fish. Obviously stays near the bottom most of the time, although I have seen him swimming mid tank several times. Great eater. Will hit the top when I put flakes in but really goes nuts for the mysis and brine shrimp. He is more active and visible than the firefish. I have also covered the opening at night.
I am not sure about a need for specific corals. I did read that they will strip the flesh from corals when mating. This one lays anywhere in the tank that he wants, middle of chalice, top of blasto and in between the clove. Doesn’t seem to hurt any of them.