Most crabs are not reef safe I would get rid of him. You could keep him in your sump if there is nothing else living in there but if you have any snails,hermits etc in there he will kill them.
most crabs are not reef safe i would get rid of him. You could keep him in your sump if there is nothing else living in there but if you have any snails,hermits etc in there he will kill them.
I saw a pic very similiar to that guy, It only gave the general species group it belonged to with about a dozen other crabs. All considered un safe for the reef. No other details though.