I recently purchased a live rock for my salty aquarium and there is a small crab/shrimp/lobster living in a small hole in the rock. The pet store didn't really know what it was so I thought I would see if anyone knew. I can only see it's front claws (@ .5mm) they are yellow and sometimes I see its antnae. It doesn't come out of the hole any farther than that and the PS said it had a symbiotic relationship with the rock (?). Any ideas? Any help would be greatly appreciated. I will gladly send a pic via email if you think you can help. Contact me directly @ emsapara@msn.com. OK a little more info. His right claw is about 2-3 times larger than his left and they have red tips.
Thanks
