I just seen a small worm crawl under my live rock couldn't get a picture. I am still really new to this so is this common. I want to see him again but he want come out. It looked green I think
could be anything! if its a bristleworm you wont see it until lights out, and then a couple hours after that. get yourself a red lense flashlight and check out your tank around midnight. you might crap yourself at what you see. i sure did. lol