Purple tang attacks

[Coasting]

Originally Posted by SeaHorse_Fanatic

Place a small mirror next to the tank so the Purple gets distracted chasing its reflection.

+1 Mirrors are great for fish with an attitude. Multiple mirrors works as well, then when they think they've won 1 argument and swim away, rather then going to pick on another fish they catch a glimps of another challenger on another side of the tank (another mirror).
I use this trick on my anthias anytime I add a new fish.