Triggers are beautiful fish and I have seen a several in reef tanks. Not a Huma Huma, however. The three that come to mind, are Pink Tail, Blue Jaw and Niger - in that order. You may have better luck buying a small one that hasn't picked up too many bad behaviors yet, but there will still always be some risk. I am considering a blue jaw, but have made uop my mind yet. Best of luck.
Jamison