Can anyone help identifying this?

[JoJosReef]

Claws is the key on this crab, although the back and legs are consistent with being a Mithrax. That's not to say "reef safe", ad I've had more than my share of emerald crabs that ate corals, but "reef safe with caution" probably applies.

Try to get a shot of the claws if you can.

 

[jabberwock]

This is a gorilla crab. Black tips on the claws is the dead give away.

 

[vetteguy53081]

This is a gorilla crab. Black tips on the claws is the dead give away.

Hairy crabs rarely good. May be a palacid crab, part of the xanthid group and not good

 

[Dirtyvibe76]

left is dying zoa and crab may be stone crab. If claws have black tips - Get rid of it right away

This is the best I could get of the claws

 

[Dirtyvibe76]

Video of the crab

 

[vetteguy53081]

This is the best I could get of the claws

Very fuzzy but looks like an emerald crab
Can’t open video on my device