These are supposed to be reef safe.  I have one in my 125 but no corals yet.  I'll update when I add corals.

Lamarks are one of the safest angels for the reef aquarium. The are midwater plankton feeders so they very rarely bother corals.

Cool, it took him about two weeks to get used to the tank and come out. Now he still hangs toward the back of the tank, but when he sees me, he comes a swimming.  Any specific food that I should feed him?  I currently use mysis soaked in garlic, zoe and selcon.  I'm planning on making my own food from the seafood section at my grocery store.