Gorilla crab

[ScottR]

I’ve lost some livestock over past couple of months. Mainly shrimp.Traps never caught anything. Finally found a gorilla crab when inspecting rocks. So I took the rock out of the tank. Question is: how can I get that guy out? I’ve heard they’re hard to trap and that guy isn’t coming out of that hole. I tried tweezers but the cave is deep and twisty. Any ideas? I’d hate to pitch an expensive beautiful rock over this guy. I also uploaded a pic of a damsel I suspect that this guy took a chunk out of.

 

[Retro Reefer]

Carbonated water such as club soda poured into the hole he is hiding in should drive it out.

 

[ScottR]

Thanks. My wife said just pour boiling water into the cave ;Dead