sohal is gonna be crazy aggressive when he gets bigger (suaully). but if its an aggressive tank, i guess that wont matter. im partial to Sohal's, awesome fish. had one in a display at the store........no other tangs for sure, he'll beat the piss out of them. but he was in with an emperator angel, broomtail wrasse, banana wrasse, harlequin tusk, crosshatch trigger, and a saddleback grouper - all pretty big. and he was boss of the tank for sure. ive never acually kept a clown......very pretty though.