Im getting one of these 2 tank setups. Either a 55 or 65 gallon setup. I believe the dimensions of the 65 are 36w x 20h x 18d if I'm correct. If I do not get the 65 I know someone selling a 55 that's 48 long and i'm guessing 12 deep. Are these size tanks enough for a yellow tang, maroon clown, clown trigger, and lion fish (all young small fish). This is the setup I've been looking to do for a while so hopefully I can. Thanks...