Yeah, might as well lose the tang for the usual not enough swimming room, he'll be cramped in no time. Hawkfish at least perch on the rock and don't swim much, very hardy also. That tang will just give you problem with ich and aggressiveness. I have had both, tang that died in QT due to hot weather and hawkfish that though he could fly. The tangs are beautiful but so active. Hawkfish are so funny to watch, great personality.