Crab

[sparkchaser]

For the past few month I have noticed I crab in my tank, This Crab has green legs, but he always is wearing something in its back. Currently he is covered with some Zoo polyps, He always has some camouflage. Should I get rid of him, I can't tell if he is hurting anything or not, but lately I see him sitting around my corals, and only at night.

 

[Atari]

Decorator crab.. pretty cool.

 

[seaham358]

Way cool... I have never seen one of those..... They are a good crab from what I have heard.