Maybe because my tank is so large that's why I've never had any problems with tangs, angels and clowns getting along? However when I had my 120g they all still got along in it, even in the 65g I started with (just before I upgraded to the 120g) all 3 types of fish got along just fine.

I threw a tiny false perc in my 125 gallon, and all the fish, including a yellow tang, didn't bother it. There are anemones in there, but it isn't hosting them, so doesn't have the protection of the anemone.

Whats the chance of a Maroon clown hosting in a torch or hammer coral? and will they pick on Trachyphyllia?? Cause if I was a fish I would be dining on that thing... looks like a delicate dessert!