Which humu is it. All triggers are humuhumu. There are some that are reef safe like the Hawaiian Black trigger (Humu Humu EleEle), Crosshatch Trigger, Bluejaw Trigger, Goldenback Trigger, Sargasum Trigger. These are ok in the reef, but they might eat ornamental shrimp.
I did some research and may buy a Crosshatch (if I can find one) or a Hawaiian black