What is this crab?

[Collinslice]

Came from Sea Dwelling Creatures in a bag of emeralds. Looks exactly like an emerald except it's color

 

[clowner]

Ive never seen one like this but i know there are black emerald crabs

 

[clowner]

 

[Lionfish Lair]

There's a few different species of in the Mithraculus genus. It's probably one of the others in that group. Those look like "mithrax" claws.

 

[Lionfish Lair]

https://www.google.com/search?q=Mit...UICCgB&biw=1920&bih=947#imgrc=kLPwCA5mHWhytM:

 

[Collinslice]

So it is indeed of the emerald/mithrax variety? Meaning reef safe? Already have 2 emeralds doing work glad to be adding a third

 

[Lionfish Lair]

I'm not sure if they are safe, to be honest. I suspect they are due to their genus, but I've never read anything about this variety, so I can't say with any sort of certainty. I'm reading about them now. They're called Banded Clinging Crabs. They are associated with anemones, sponges and corals.

 

[Lionfish Lair]

It looks like he's awesome and stays small. SCORE!

 

[Collinslice]

It looks like he's awesome and stays small. SCORE!

Awesome thank you. Will update if he turns on corals but with one claw, its even more unlikely haha

 

[Lionfish Lair]

They are like the little commensal acro crab. They won't want to hurt their host, but sometimes in closed systems, they can irritate.

 

[Collinslice]

They are like the little commensal acro crab. They won't want to hurt their host, but sometimes in closed systems, they can irritate.

He's been munching on hair algae since I dropped him in the tank. I only have zoas and a couple mushrooms at the moment so I don't think he will do much hosting

 

[Vincent100]

That a nice looking little crab , keeper