Crab Identification, Please

[DoINeedAName?]

This little guy has been eluding my camera for quite a while now, but I finally got a picture of him. He was a hitchhiker on a Petco rock and he’s super chill. He hides most of the time and only comes out when food is close to him.

 

[blaxsun]

He's cute. Possibly a ruby crab? (basic a red emerald crab) Supposedly good for hair and bubble algae.