Oh yeah,that was one of your original questions.I have mine in a characin community tank of sorts and it rarely bothers the tats and armatus or the brycon or anything else but it does torpedo into whatever fish happens to be in the path of its constant patrolling.It will even snatch food from the mouths of whoever cant swallow fast enough to get it down.I did have a cichla bass in the tank but there was never any noticeable problems between them.I only removed the bass because it is my only live fish eater and the other fish have been trained off of feeders.pacu22;3899495; said:Have you had them with tankmates? I want to put them with similar sized pbass. And I'm totally stoked to have active fish.