What kind of crab is this????

[CANNONBALL]

It was in my tank it looks like a stone crab can some one help me pleas thanks

 

[ccCapt]

Pics are too small and too blurry.
If it's hairy and has big claws, put it in your sump...if you have 1.

 

[Fluff]

If you could remove the crab and take a picture on a macro setting, that would help. But any crab has the potential to be a problem and a sump or fuge area would be the best place for him.

 

[Innovator]

Probably from Xanthidae and not considered one you'd want to keep.