I can't tell what type of hermit crab this is but it has been in a storage bin for a few years with only live rock/light and I guess algae to eat but a few years ago I thought he was gone, I just recently pulled this rock out and he has survived, but I could have sworn that it was a red legged crab a few years ago. It has black legs with blue dots on the legs, red antennaand seems to like green hair algae allot. Does anyone know what this is?