i think this was asked awhile back.I dont remember what the anwser was but i do remember agustas had one in his 100gallon softie /LPS tank and he said it did fine .I dont remeber if he had it in with any SPS though.Someone else has that fish now though
I believe the reason they are not reef safe is because they inverts and crusties. I'm not sure if they eat corals but I do know they are only recommended for a FOWLR aquarium. Lee had one awhile back...beautiful fish.