ID Help : Swimming Bristle Worms?

[Vitaly]

Well I have seen these critters at night after lights out. They look like little bristle worms, but are free swimming. Anyone have any thoughts on what these may be?

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A higher resolution version of the img can be viewed here:
https://netfiles.uiuc.edu/stepensk/shared/Aquarium/Original.JPG

I was able to capture two quick movies to show their movement:

https://netfiles.uiuc.edu/stepensk/shared/Aquarium/1.MPG [7 secs]

https://netfiles.uiuc.edu/stepensk/shared/Aquarium/2.MPG [12 secs]

Thanks!

 

[Janice12]

Epitokes possibly?

 

[Vitaly]

Janice12...Epitokes definitely! Thanks for the reply.