Creepy Crab ID Please

[LeanneP]

Originally Posted by gregzz4

Hairy crabs are generally 'bad'

Put a piece of people-food style shrimp in a glass and lean it up against the rock he's in
He'll be in the glass in the morning, or the next morning ( don't smell the shrimp when you pull it out )

Take a pic for us and/or take him to the LFS for ID, or to be fed to something hungry

So I am curious to know why these crabs are so bad? Do they eat corals?