Critter ID - White worm swimming in the moon light

[MBruun]

Hi

Can anyone tell me what this is ?
White worm like thing on 3 to 4 cm swimming fast around in the moon light.
I could not get a picture since it was moving all the time, but I've uploaded a video on youtube.

https://youtu.be/jC4jIG8ww7k

/Morten

 

[vetteguy53081]

Hi

Can anyone tell me what this is ?
White worm like thing on 3 to 4 cm swimming fast around in the moon light.
I could not get a picture since it was moving all the time, but I've uploaded a video on youtube.

https://youtu.be/jC4jIG8ww7k

/Morten

The video is extremely dark but the movement suggests baby dorvillidae worm

 

[Gtinnel]

I believe what you are seeing is an epitoke.

 

[Just John]

I don't know what you are seeing, but I have the exact same thing.

 

[Goaway]

The video is extremely dark but the movement suggests baby dorvillidae worm

Most likely this. The only worm I know that floats with water current. I haven't seen any eunicids do this.

 

[MBruun]

I think you are right about the epitoke.
Some sort of bristleworm

Thanks

 

[Just John]

I think you are right about the epitoke.
Some sort of bristleworm

Thanks

I know I have at least one bristleworm, so that makes sense in my tank.

 

[Gtinnel]

From my experience it is the epitokes that go into the water column and kinda wiggle around to swim.