i have a long 60 gallon tank and i have 5 red belly babies in it right now and i was wondering when they get big is there anyway i can keep all 5 in the 60 gallon? i keep hearing sometimes red belly's do okay being over crowded but i was wondering what happens when you overcrowd? do they start killing each other or do ammonia levels go up? i do partial water changes every week. i have been succesful overcrowding my ten gallon? i thought it was because i did partial water changes once a week?