I have PBT, 2X YT and 2X PT and they all get along like a bunch of homos in a bath house.
Wasn’t always that way, they nipped and flipped for about a month…. My wife would yell at them to get along behave and that seemed to work.
Over feeding, moving the rocks a bit and using a mirror were all a wast of time….. best practice is a menopausal woman yelling at the fish.
(At least she wasn’t yelling at me LOL)