i have a yellow tang, blue hippo tang, tomatoe clown, a blue damsel with yellow tail, and a nasty aggressive domino damsel. Well my blue tang has become the police in my tank. If anyone fights in the tank the blue hippo breaks up the fight. It will follow my domino damsel around when he gets aggressive he chases him away. Anyone notice any blue teams being the moderator in the tanks? Lol he keeps my tank pretty calm