Not really. The PBs died first actually. They have an own territory within the tank and most of the fishes (except the dominant aro) stayed away.
Any fish that went near will be charged at but they don't really inflict and serious damage. Kinda like the PBs are at one end of the tank and the Armatus the other side.
Armatus aren't very social or tolerant of tank mates once 18"+
PBass are going to eat first and the Armatus is going to get angry. Perfect recipe for a storm.
IF I was going to expect something to live with a big Armatus it better swim in a different part of the tank then the Armatus, have the necessary hardware to defend themselves, or have enough speed to stay clear.......