Is this a Mantis Shrimp?

[o.c.d.]

Have you located where it sleeps if so you can (I know this sucks) pull the rock and put it in your other tank. Or if you want to keep the rock in the display, pull rock and get your spear, war paint,red bull ect. and go mantis hunting. O ya if you do need to fashion a spear metal coat hangers work great. I also have a acrylic trap with a drop door your welcome to try it but you have to be there to drop the door so unless you want to wait it out. Maybe that's where the red bull comes in.