Trapping Mantis Shrimp

[pikkastang]

I made one of those home made mantis traps using a coke bottle. My question is do i put the bottle on its side or standing up in order to trap the little guy. Last night was the first night I tried the trap and the only response i got was from my cleaner shrimp. Any suggestions for those of you out there who have tried this method.

 

[MarkO1]

Try putting some rock or aragonite / crushed coral in it to keep it in place.
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Acura ARX-02a

 

[pikkastang]

should the bottle be on its side or standing up on?

 

[MarkO1]

I'd set it down on its side. Put a treat in there. Maybe a piece of shrimp.
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Honda Ape