Fast swimming worm??? (Video)

[DaphneAlice]

I was glad to've grabbed my phone in time to catch this crazy little dance. Any idea on what this fast twirling worm might be?

Thanks!

 

[Reefing Madness]

Pic?

 

[redfishbluefish]

No picture.

But the more common polychaetes found in saltwater tanks are bristle, bobbit and dorvillid worms. Best to look for them after lights go out....using a flashlight. Here's a video from LionFish Lair's Hitchhiker site of a dorvillid.