Pistol shrimp probably hitchhike

[vcnt]

After putting liverock in about 3 weeks ive been hearing click click, but i have never seen anything. I assume pistol shrimp but how do i lure him out. Rock is from @LiverockRocks Tbs

 

[jabberwock]

Try approaching the tank from the side with a red flashlight after lights out. I only found mine because I was thinning out some macro algae, and he came with it. It was tiny, maybe 2 cm long.