For the most part I’d say they are definitely on the more aggressive side but just like most fish it will boil down to the personality of each individual fish, I’ve only ever had 2 I guess technically 3. My first one was an absolute menace and killed almost everyone in his tank (mostly other large cichlids) so I ended up rehoming him, now 5 years later I decided to try them out again and got 2 they lasted about 2 months they had their little disputes here and there (nothing serious) until came home one day to the other dead and the one in the photos looking very proud of itself. He currently shares his tank with a couple bichirs, a tire track eel, 2 leopard ctenopomas, and a panda garra that has somehow survived all odds and no one messes with. The Tex will chase and nip at the ctenopomas fairly often so they're going to be moved to a different tank he never messes with the tire track eel, and only really nips at the bichirs during feeding time when they get in his face.
