in case u dunno this, whitecheek tang = powder black.....it is the same fish....lol
in case u dunno how fierce a powder blue can be, u seen my black tang, he is so much bigger than my pbt, but my pbt will fight the black tang. n if u never see a pbt whack a fish, my advise is, dun try. when pbt whack a fish, it make sure the fish is dead b4 it will give up.