can this be doable in a apt? my tank still has a leak in the rims now, so i added another dose of aquarium sealent * just got today from true value for 5 buxs ) but know im thinking of doing a kiddie pool with 1 male pink con ( just got yesterday ) 1 sev ( first time owning these guys! and love them to! ) and one female jack dempsey. and maybe a firemouth. so can i do it? i can get one from walmart.