right now in our 215 we've got the 2 tangs, juv. emporer angel (he runs the joint), bi-color angel, porcupine puffer, foxface, leopard wrasse, racoon butterfly. the porc and the foxface are the only fish that are "adult size" if you will. Everyone has been together from the get go, with the exception of the angels, which were added later (all the fish were in our 75, the angels were in our reef...I know, an emporer in a reef, my hammer coral paid a heavy price). The powder brown tried to bully the bi-color, but the emporer put a stop to that real quick. I must say your tank is gorgeous and quite an inspiration!