That’s interesting. I figured they’d all pair but I suppose that makes sense. The one in the rock also has much quieter snaps than the tiger pistol and the snaps are also more repetitive. I thought it would be a mantis but I did see it today and it was definitely a pistol. It had claws rather than smashers.
My candy cane pistol (pairing sp) Loves to run around In holes in my rock. Hell, when I bought him he wedged himself so we'll inside the crevasses of a rock we took 20 mins to break it open and get him out. I'm sure with the size of shrimp those holes in the rock feel just as spacious, even more so then tunnels in the sand. I will note however that my pistol does also burrow in the sand.
The sound is extremely different. I have some hermits that do the same, (One specific little dude that does it in the same spot every night) and that's more of a light tapping The pistol is more of a loud pop.
The quieter snaps could be due to the fact that he's much smaller. As for the repetition, potentially there's a snail or a crab encroaching on his territory causing him to snap at him to get him to leave. This happens with mine all the time. Some days he snaps once or twice, other days 5,6,7 times in quick succession.
