Hello im new to the forum so this might be a stupid question but if you dont ask you dont know i have a 55 gal with a tiger oscar so i know a little about tank up keep but i have a 55 gal i was thinking about setting up in a few days and a friend is going to bring me a male convict he is pretty big so i would say he is an adult but my question is my sister in law bought this fish pretty sure he is a cichlid but not sure what kind its blue with yellow fins its killed most of her fish and wants to get rid of it so if you might know what this fish is would it get along with the convict sorry about the long explanation im new any help would be appreciated Thanks