A month after introduction, I was forced to remove my C.hotumatua because it began the bad habit of consuming corals and clams.  In my experience, there are no 100% reef-safe Dwarf Angels.  Of the 14 species I've attempted, none have been reef-safe.  My best advice is to refrain from adding Centropyges in reef aquariums; they are incrediblly difficult to remove after introduction.

I will leave these pics up since this fish is such a beauty.  I really wish it had been a better citizen; it was heartbreaking having to give this angel up.