RBTA Help please

[Tigweldpro]

Well I waited till the lights were out and went in to catch him, had to try and get him to move out of a crack in the rock and he dropped one of his claws. Now looking it up I see that if they feel threatened they will drop a claw to distract the predator. The claw should grow back in a few molts, pretty cool
I hope he enjoys his new sump and 2 mandarin friends.

Ill post a new pic of the RBTA in a month or so I almost guarantee the crab is the issue after seeing him claw deep in the anemones innards.

Thanks for all the reply's