Whos Killing the Crabs?

[archimed]

This is a long shot - but any chance that a mantis shrimp has been hiding out in your LR? I had my entire cleanup crew wiped out twice, mysteriously. Two years after my tank had been set up, I heard a 'clicking' sound in the evenings that I couldn't place. Finally, I figured out that a mantis shrimp had hidden away and survived the 4 day trip from Jakarta to Edmonton :!
He had been silently killing dozens of cleaners in the tank before I lured him out. He was the size of my pinky finger! Ugly little guy too..

btw - first post. I recently came back to the hobby after a few years hiatus from my last (failed) attempt. This time I have a 14gal Oceanic Biocube that I'm still setting up. Located in Deadmonton!