I found a 6 to 8 inch bristle worm in my 120 gallon tank this morning. I never did get a good look at him while he was in the tank, so I grabbed the tweezers and pulled him out,... well... at least a part of him anyways. It wasn’t until I got him out of the tank that I noticed he was just a bristle worm.

But man, do those things ever look like something you would expect to see on a science fiction horror movie when you get a chance to look at them out of the tank and up-close in real life.