Friend or Foe?

I have been trying to battle what I thought was some sort of hair algae for a little while now. All I would see where strands of long green coming out of my sand and to my surprise, they are worms of some sort.  I blow my turkey baster where I see the and suck up a worm with long tenticles.  I will try and get a pic a little later but the closest i could come to what they look like when seen in the water column are Cirritulids.
if you go here, http://www.chucksaddiction.com/hitchworms.html and go to that category, the first picture is very close if not exact.

 

yup spaghetti worms for sure, now how can i thin these out by a lot. seems im infested with them. anything that may eat them?

 

yeah I thought about that Nick but they are also in my rock, I am wondering how a CBB would do. Any thoughts?