The triggers get along fine although they do have a tussle here and there with the Sargassum being the instigator, but nothing that draws blood. None of the 4 triggers bother the hermits, snails or the clam I’ve had for 3 years. The clown trigger likes to naw on the red monti caps from time to time which keeps them from getting to big. They don’t bother any of the corals. The Maroon clown hangs out on the Duncan colony and the tomato up higher in the tank by some Acro colonies, so they don’t see each other much with all the rock and coral.