crab ID

[clippo]

anyone ID me this specimen?

http://forum.marinedepot.com/Uploads/Images/db5ebeff-f7ac-4fb4-ac26-dca4.jpg

apologies for the multiple post - it appears that I'm not allowed to delete my own posts for some reason!

[InvertLover]

porcelain crab. They're safish, and I've never had any problems with mine. They'll filter small things out of the water to eat, and snag other foods.
( actually they're not a crab at all, if I remember right)