ok i'm trying to make up my mind for my 55g tank. i want to have awesome looking fish in my tank. i wanted a tang but everyone says no tang. what would be hardy and easy to take care of any ideas? right now i have 3 blue green chromis, i'm putting in live rock. thinking of 2 ocellaris clowns and 2 cleaner shrimp. anything else what can be the center piece? i wanted it to be the tang. any other ideas?