Not all mantis shrimp click. Some "spear"... silently.
You can make your own trap. Take a small soda bottle, rinse it out, and cut the funnel end off it and invert it. You can use silicone to fasten it back in.
It should look sorta kinda like this:
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Sorry I'm not good at 'computer graphics' *g* Have the narrow end of the funnel pointing back into the bottle. This makes the entrance similar to that of a lobster trap. Bait the bottle with something nice and smelly, and place it in the tank at night. You may catch any hermits or
serpent stars you have... but if you're patient you'll more than likely catch the shrimp. It will smell the bait, enter the bottle through the wide end of the funnel, and it will be almost impossible for it to find its way out.
HTH
Jenn
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