can someone ID Please worm?

[Tbone9387]

can some one id there are a ton of these in my macro algea tank

 

[Idoc]

Bump...i've never seen such a crazy worm movement. I'm surprised the fish aren't attacking them.

 

[ISpeakForTheSeas]

Probably epitokes (the reproductive stage of some polychaete worms). So, I'd guess your bristleworms are breeding.