Hitch Hiker ID Help "Crab"

[Talentedminds]

I found this hitchhiker yesterday living inside on of my smallest rocks so i had to pull it while i had the chance, got him out of the hole with a chopstick. This is a pic i got from the net but the language is not in english, can someone help me ID him. It is very small maybe 1 in. He wasn't bothering anything in my tank yet but i rather be safe then sorry. His claws have a very light redish/black shade to them. thay are not just black. Thanks for the help
Mithrax sp or Xanthid sp?

 

[cybermeez]

Based on the claws flat tips, I'd say probably some kind of Mithrax.

 

[Talentedminds]

i have emarld crab already in my 75, so would you say keep him or take out? i have him in my fuge for now.

 

[Chapz]

My Emeralds and Xanthlid crabs are peaceful. Mind i Say "Mine" are. Cant say the same for others.
Thats probably a Mithrax

 

[tosiek]

They get big quick, and when they get bigger they have a tendancy to go for your coral. so. careful.

Put him in your sump.

 

[cybermeez]

If it were me I'd keep him. I've had both Mithrax and Xanthid hitchhikers and out of those half dozen crabs, not one of them ever went after a coral or other tank inhabitant.

i have emarld crab already in my 75, so would you say keep him or take out? i have him in my fuge for now.

 

[Talentedminds]

mods please close. thank you