Red crabs

[ccirish]

I have a few red crabs with hairy legs and tanish colored points on their claws, are these ok for tank? Thay came as hitchhikers.

 

[patsan]

They're probably mithrax crabs....when they get larger they will start eating some things you wouldn't want them to. I'd say the only crabs that I have seen come with the TBS that hasn't done any damage so far is the porcelain crab.
I try and remove all the crabs I can now, with the exception of the porcelains.