THATS what I had in my tank!! I saw it last night and by the time i got a flashlight to get a better look it had gone in the rock. Can you give me some info on them, nocturnal? how are they helpful? can they harm and fish or corals? P.S. I hope im not hijacking your thread, patandlace, cause im pretty sure you are learning something too lol thanks guys
REEFMAN