so ive had different kinds of prediators before wolf fish, cichlids and red belly piranhas, and these fish you can keep with most other simular sized fish, the only kind of fish ive had thatwould kill anything just for fun and territory were black piranhas now i hear that african tigerfish are super aggressive so are they cichlid aggressive or are they black piranha aggressive? can i keep them with any thing or will it be slaughter?