i know im gonna probly hear alot of stuff for having them in the tank that they r in but they r in a 30gallon tank for now untill the 210gallon is done being set up and cycled but they seem prty happy still in that tank for now and no agression towards any of my other fish in there or to each other and those 5 orinos are only about 4inches long and for filtration for the 30gallon they r in is a AC110
