hey bro.. give it a weeks time and then decide.. i wouldnt recommend more aros goin into this tank.. prob for the time being.. i'd say two but nothin more than that.. but be ready for aggression.. where are you from? adult aros.. esp silvers should be cheap but yes they are priced so high by most lfs who try to rip you off.. when the aros get to about 8" or 10" you should be ready with a larger tank..