What crab and is it dangerous to my fish etc?

[katie_kt_17]

Hi guys, i'm reasonably newer to the fish tank hobby!
I have had this crab in my tank for about a year now. Bought as a little green emerald crab and then it shed and turned red a few times and has grown quite large. No idea what type of crab he is, and whether he will be harmful to the other fish. He has slightly hairy legs and dark large pincers, (well one has fallen off and grown back once, and has just fallen off again)
I've attached photos and a video.

 

[KING KONG]

Hi guys, i'm reasonably newer to the fish tank hobby!
I have had this crab in my tank for about a year now. Bought as a little green emerald crab and then it shed and turned red a few times and has grown quite large. No idea what type of crab he is, and whether he will be harmful to the other fish. He has slightly hairy legs and dark large pincers, (well one has fallen off and grown back once, and has just fallen off again)
I've attached photos and a video.

Can't see vedio. U can attach you tube link. spoon claws usually means emerald/Mithrax crab and pointy claws r bad crabs. Can't say anything from photo