Worm ID help

[Tjured]

Hello,

hope im at the right forum part for this, if not pls move it.
kinda new to the hobby, my aquarium is now about 2 months into.

I found this 2 worms, one accidently split when i catched it, heres a screenshot. Can i leave them er= friendly for other tank inhabitants or remove it? http://imgur.com/a/injrU

thanks for answers

 

[Sugar Magnolia]

Harmless bristleworms.

 

[Spyderturbo007]

I would remove ones that are that large. A few of us have had fish inadvertently run into them and end up dying.