For the record I may have posted this here before, I do not remember I Do have a peacock bass named Huey , He is in a 125 with my 5 Red bellies, and a high fin pleco. They do bite the plecos tail once in a while though i have never seen it he is rather large though so he will chase them down if they go near what ever he is eating, my P bass has never had a nip on him and his instant aggression and speed scares the **** out of the the P's , the p bass can definitely hold his own , he is about 12 inches and i think the red fins keep him safe, if piranhas go for a meal and see aggression they stop instantly a very scared fish is the red belly