I agree it is a torch. I do not feed mine anything either. They may catch a piece of floating food once in a while that is for the fish, but I don't target them at all. I would move the coral though. Usually higher in the tank persuaded my clowns to leave it be, but once I relocated it without giving them a proper host, they went right back to it and killed it. Now that I have a RBTA they leave all my corals alone. Before that, nothing was safe. Galaxia, zoas, hammer, fragspawn etc etc.