Same issue...
Same issue...
I started a 215 reef in June of this year with live rock from Tampa Bay Saltwater. On Tuesday, my wife and I trapped a three inch mantis shrimp in a rock, immediately pulled that rock out and doused him with tap water. He quickly came scurrying out - his next stop being our local sewer system - it was a beautiful sight as he helplessly went round and round the bowl. Since we set up the reef, we have pulled out 5 mantis shrimp, each time hoping we had gotten the last of them. I have lost a clown, a wrasse and numerous crabs, etc. I hate those damn ms. Yet, I still hear some snapping in the tank, much like the author of this thread described. Do any other creatures make that awful snapping sound? I don't hear the same volume of popping heard prior to removal of the last little beast. With any luck, I am rid of those pests for good but if not, I've become damn good at finding and killing them....enjoying as each one dies a slow, painful death....