I've noticed several posts about BP's who are stressed or being bullied. Very often it's mentioned that there are 3 BP's in the tank. 3 is often the worst number of animals to be kept together because 2 usually buddy up and the 3rd becomes odd man out. Best to have 2 or several instead. 2 works well because if it's a male and a female they might pair up; if it's 2 boys or 2 girls there's no competition for a mate. A large group cuts way down on conflict because rarely is 1 fish/animal singled out and harassed; there's interaction amongst all of them. Obviously it takes a way bigger tank to house a bunch of fish so for most people having 2 would probably be the best way to go. Make life simple for yourself and the BP's, try to select 2 fish that are staying close to one another in the dealer's aquarium before you bring them home. That way there's a really good chance the fish already like each other. If you notice 2 where one is being 'protected' by another who is driving off the other fish, it's probably a mated pair even if they're young! You have to be able to identify individual fish even though they all look the same and watch them for a while. A good dealer can help pick out 'pals'.