You mentioned the clown trigger as a stress (I know they are usually a real problem but he’s been real passive, the butterflies and tang steal food from his mouth and he lets them). Also the last time everyone had ich, the trigger was the last fish put back in the main and it seems everyone became a lot calmer (esp. the Naso and raccoon) once he returned. The Naso is the most aggressive when it comes to food or her “cave”. The blue damsels will chase the smaller fish occasionally especially around their territory. The live rock provides plenty of hiding places for everyone. No one is reclusive. All in all everyone seems to get along (no battle scars, torn fins).