^ Spot on.... lol.
Everyone seems to think that Brassies are everywhere..... IF they are there should be little to NO aggression at all. Like I said, I've never had a problem with either of the 2 I'm keeping. Same scenario with a Frankie - shenanigans within the first week of being moved in.
Until someone proves me wrong it sure seems like given the experience I've received from these fish, the easiest way to tell Frankie or Brassie is if they bother tank mates.......
Best advice IF it is a Frankie - never let him get control of the tank. Always keep something bigger in there with him. Once he gets to the top of the chain he'll die trying to defend it.
I wonder if the key to harmony in a community pred tank isn't having at least 3 different scenarios of predator - ambush, constantly patrolling, and a combo of the 2? Example - Dorado ATF Wolves Or Dorado Armatus Wolves? Having just 2 may result in a square off, but like groups of fish maybe 3+ is the magic scenario?