I was putting in some new coral today and I noticed by scooter nudging at a little cave like hole in a part of my live rock. I looked closer and I saw a worm that was, as far as I could tell, about 4 inches long

. I have read all about how these worms can destroy a tank and I don't want to take any chances. Is there any way to catch these things. I already tried to reach in and grab the little booger, but it went in to a small hole in the rocks. Any suggestions would be greatly appreciated. Thanks.