huge fire worm?

[dcw1sfu]

Well 9 months later I finally got him. Pic doesn't show it but he is at least 18 inches stretched out. All traps were ineffective I finally got him this morning as he was stretched out towards the front of my tank towards my zoas. Grabbed him with a large pair of prongs. These things are surprissingly very fast. Not sure if it wad a fire worm might just be a large bristle worm but either way its too big and creepy t leave in the tank. Also left a bunch of bristles in some zoas.