Any ideas on how to catch a way too big pistol shrimp without tearing the aquarium apart and pulling live rock? My pistol shrimp (beautiful orange color with blue antennaes) has gotten way too big! He's at least 4 in long and his snapping can be hear across the house in the middle of the night. I've seen him try to attack a brittle star but no telling what else. Any advise would be appreciated!