I never say this to people. But, do yourself a favor and take it back,now, while you still can. They are a very nervous schooling fish. When startled they are prone to bounce off the sides & top of the tank, think flood and/or constantly bruised nose. I'm assuming of course that you can't or won't want to afford a multi thousand gallon tank to keep your school in. Seriously, if it survives, they get huge, and even if you can find someone to take it when it outgrows your tank, It'll be some idiot that thinks size = aggression so it will end a miserable life as a feeder fish. Pet store that sell these fish should be fined.
