I just happen to walk by the tank at 1AM last night a saw a "giant" Eunicid worm crawling among the rock! It must at least 1/4 inch thick and god know how long...it's a scary sight. Now I know what happened to my Naoko wrasse I tried to catch it but it was too fast. Anybody have any ideas on how to catch or trap these things? beside removing the rock work. Thanks!