I agree. Looks like they can get very Big. I have been wanting to catch and rid of them for a while now. I just had a Snowflake Clown disappear and believe that worm was the culprit. It is a Eunicid Tomoko. I looked them up and these look just like them. These hitchhikers must have came on some live Fiji rock I got from Chris. I read where they are from Fiji. Ugly looking worms.