Gorilla crab problem need help!!!!

[ddenora]

had the tank set up for about 2 months now and just tonight i was looking at the corals with a flash light and i saw him on one of my zoas. i tried to reach in and grab him as fast as i could but he ran into the rock. anyone have anything i can do to catch him or get him out. maybe something that eats them even. have a couple sps and a bunch of shrooms so now I'm all nervous he's gunna get to them before i could get to him. please help!!!

 

[kevinsmixed90]

you will need: small piece of table shrimp, 3" length of fishing line, short water glass. tie shrimp to fish line put small dab of superglue on other end of line and with pliers glue line to center of glass. prop the glass against the rock closest to where you saw the crab. crab will cross rock and fall into glass and not be able to get out of glass. good luck