From Day one the tangs have been great! (knock on wood). Everyone seems to keep to themselves... except at feeding time. I throw the lion a silverside, quickly followed up by one to the Huma, then the Niger then I can put in the frozen brine and mussel and such. I also put a rather large piece of dried algae in there for the tangs to keeps their color up. Haven't had any problems so far. In fact, I think my Niger is trying to school with them.... or they are trying to school with him, one of the two. I got them because I had a HUGE problem with algae. They have cleaned the tank up wonderfully. I think because the school the rest of the fish figure if they pick on one, they will all attack.. I dunno. Thank you very much for the compliments and once I get a better cam I hope to post some more....