Hey guys quick question is a grow out tank necessary? Or does it depend on the size of the fish? Setting up my 420 after a recent move didn't have room for my smaller tanks so i had to get rid of them. Is that to big? The fish are P Bass btw either from rapps or snookin haven't decided yet but rapps has them at 4.5in and snookin at 3.5in. They will be the only inhabitants in the tank until they are bigger to add something else or whatever the case may be. So will they be ok to start out in something that big?