Worm ID please

[Gilarax]

So this is a two part question:

1. What is this?
2. Should it be removed from my tank?

Here is an image of the worm.

http://i.imgur.com/xuB88oO.jpg

I know its a bit blurry, but the thing is super squirmy.

Here is a video of the worm.
https://www.youtube.com/watch?v=dk5Bwo0PFjg

Thanks for the help!

[Gilarax]

Today I found a smaller one. I managed to take a better photo of it. I hope this helps.

http://i.imgur.com/W3QahkP.jpg

[peasofme]

there's no pic

[Sugar Magnolia]

Epitoke. Part of the reproductive cycle of polychaete worms. Harmless.

[Gilarax]

Seriously, awesome thanks!

[Betta132]

Second picture is pretty cool. Awesome thing.