Anyone know this worm?

[reefiniteasy]

Any ID on this worm?

 

[WheatToast]

Possibly a Dorvilleidae worm, which are beneficial grazers. Do you have more pictures?

 

[reefiniteasy]

Possibly a Dorvilleidae worm, which are beneficial grazers. Do you have more pictures?

No. I keep an acrylic frag pointer and giant feed feeding tube in the back of the tank and it was in the tube. Second one I found.