Just received an order of a few SPS frags. I have noticed a small crab hitchhiker that came along. Very small less than a quarter inch side to side, brown in color with red tipped claws. Shell is sort of "heart" shaped but with top or front being flat. Reminds me of a Chesapeake Blue crab in the way it looks and moves only this crab is much smaller.
Any idea what it is and is it good to add to the system?
Any idea what it is and is it good to add to the system?