I have a 72 bowfront reef/fish tank. It has been up and running for 2 years. I know I have a mantis shrimp due to the loud clicking when the lights go out and it has eaten every snail I have ever put in the tank. The funny part is I have NEVER seen it once, and it doesn't eat my skunk cleaner, blood shrimp or peppermint shrimp. It seems to only eat snails. I have heard negative things about trying to trap them, that everything else gets in the trap but the mantis, I have looked at night with a red flashlight etc... I want it out but I don't even know where it is hiding.HELP!!