It looks like an Emerald Crab, and I have him for like a year now I think... He have a whole cave system in there but I recently started adding coral to this little tank and I have seen him more active since... Like walking around the live rock like never before and he found like refuge in this Yuma... I know emerald crab some people would say that they are bad and I believe this one act pretty much the same. I would just like to know if someone have one or know something about them? The would eat corals or not?
Posted 28 May 2013 - 08:37 PM
Posted 28 May 2013 - 10:09 PM
Thanks guys =)
Posted 29 May 2013 - 05:10 AM
Posted 29 May 2013 - 06:13 PM
My guess is a type of Pilumnus. Maybe Pilumnus longicornis.
Where did the live rock come from? Indo-pacific? If so, this cannot be an emerald crab, because they are not found in that region. If an lfs has emerald crabs already, they can hitch a ride on live rock if the live rock is in the same tank as the emeralds.
The claws should be a good clue. The claws of an Emerald opposed to a Pilumnus are very different. Also the carapace of an emerald are a pentagon shape, while Pilumnus have a much more rounded carapace.
Posted 29 May 2013 - 06:37 PM
Is it like this one?
I have tons of non-reef-safe crabs, and none of them ever do any damage to corals. If you're comfortable that it's not eating your corals, then enjoy your little friend!
It's a cute one!