I had bought it from someone I thought would know what he was talking about. It might be different opinions or something, again it depends I guess what people consider reef safe. Yes it is coral safe but not invert safe from what I read. The fact it eats some of my hermits isn't a problem really, I wouldn't get rid of it if tha was the onl thing it did. The only thing I see it eattign is the food i give them to eat and I'm sure the amphipods and copepods in the tank. it is the fact it likes turning things over that is on the sand and with some of my small frags that I'm trying to let grow, i'm scared it might end up causing some of them to close up and die if they keep getting turned over. At least I think it is a the culprit, I will really miss the fish if I get rid of it and it ends up not being the one that was turning over the frags. It is a nice fish.