i really want to keep a black aro i have a 135 gallon (6'x18"Wx2'H) and im wondering if its big enough to keep a full grown one i read they dont get as big as silvers and well i know my local fish store has a 2 - 2 1/2 foot massive aro in what looks like a 125 and theyve had it happy in there for years. so i figure i might be able to get away with one black aro in a 135?

