I found this at about 1:30am crawling around on my birdsnest coral so I snatched him up for an I.D. what does everyone think I do have an emrald crab and some regular hermits.
I dont think its an emerald crab cuz of the claws....looks more like an acro crab or a mud crab but i think mud crabs in general are black...if its green it may be an emerald but the claws just dont look like an emeralds claws...
check this link out see if you can maybe make a better ID. My bet is when you're not sure, dump it or fuge it (when you know that it cant make it back up).