I think have a gorilla crab.

[tmccaff]

Do all crabs hide? He is big I see him under one of my rocks. How do I remove recommendations? I do see a lot of snails dead in that area.

 

[fishywishy]

Yes all crabs hide. You can try a crab trap which is just a water bottle with the top cut off and inverted. Just tie a string to it and pull it out when the crab goes in. You can also try a shot glass trap. If you know where its at why not just pick up the rock and scoop him up with a net?