Okay, I have a little red barb (dont know what kind) maybe 2 inches in there with my piranhas and they wont eat him!!! They will swim full speed right past it just to eat a goldfish thats the same exact size!!! He looks just like a goldfish but he swims around with my ps like hes one of them!! I hate him! He thinks hes so cool. That little bitch is going down. Why are my ps doing this????