Is that a sun coral? It's BEAUTIFUL!!! Can you give details of how you take care of it. Flow, lights, location, feeding etc...
I have pc
lighting and this coral sits towards the bottom of the tank. I've heard folks tell me that they put it on the bottom of the tank and even under ledges of rock. They are a low light coral. This is one of the few corals that require target feeding. I feed him a mix of mysis shrimp and phyto-feast (a green smelly stuff) 2 or 3 times a week using a turkey baster (yes, it's real high tech stuff). (ps-thanks much to Melosu for all of his feeding info on this coral).
It's really not that difficult to care for but just remember that you do have to feed this one.