I know I have seen post before but dang.... damselfish are jerks. I bought 4 Neopomacentrus azysron (correct me if I’m wrong) last year. Within a few months it was down to 3 and today it’s down to two. The last two are huge and territorial. Each one has each own side of the tank. The one that died today would get bullied every so often. One point, half the tail was gone but it grew back. But for some reason today it got beat up bad.