He ate everything I fed him. flake, pellets, and frozen.
I had him for a few years before I sold him along with my tank, but I heard he didn't survive the move. He was a great fish. Very active and not nearly as aggressive as I've heard others say.
He picked at a lot of different corals, but he only completely destroyed acans. He didn't pick at sps. I think they like the fleshy lps because I had a trachyphyllia he liked to pick at. It was never able to fully expand and by the time I gave it to a friend to save it, it was too late.