I saw a small black smooth crab in my reef twice now in the past week. It's about the size of a quarter, smooth sharp edges, no hairy look about it, quite ominous looking creature.
He obviously must have hitchhiked in on my new rock I recently added.
Please tell me how to get him out - Anyone ?
I would rather have him in the sump in a controlled environment rather than dining on my snails or coral God Forbid !!
I wont be able to catch him my rock setup in my display , as well as my reef won't allow for easy retrieval.