I may actually be looking for the Tang police. I am selling my fish and set up. I advertised my fish and they are in a 90 gallon. Someone may be interested in the Kole Tang for a 60 cube. I'm hesitant. Live aquaria says 70 gallon. But Tangs like length to swim so 60 is small and cube isn't long. Any opinions? My kole doesn't seem to swim the length of the tank much but he's not to big yet.