Shell smashing reef hermit

[Jeox]

Whats the care on these guys? Can't seem to find anything. Got one mis-labled.

 

[Butter73]

Do you have a pic of it? I just went to the LFS to get a couple more hermits and one of them is different than anything I have seen. It looks like it has one long arm with a sharp piece on the end. Is it the same thing?

 

[Jeox]

http://www.noaanews.noaa.gov/stories2006/images/nwhi-crab.jpg
Just found its also calle a white spotted. No care info though/...