Little white worm id

[Mef]

Hi! I found this little guy in my saltwater tank. I managed to catch him and take some photos. It seems to be a very good swimmer and keep hiding in sand.
Does anyone know what it is?
Many thanks.

 

[vetteguy53081]

Looks like a dorvillidae worm which is a cousin of the bristle worm and a reef safe scavenger

 

[Mef]

Looks like a dorvillidae worm which is a cousin of the bristle worm and a reef safe scavenger

Thanks a lot!