Tube type worm.

[rrdodge1283]

Have these tube type worms that are the size of pencil lead and come out of rock and extend to gravel and suck it in. They are not multiplying and seem to be ok, pretty cool looking will try to snap picture and post but come out at night. any simialar experiences. (Brown with whiteish striping)

 

[Juck]

Sounds like a peanut worm (Phascolosoma noduliferum),,,, pic would be good though

 

[Sugar Magnolia]

A pic would be very helpful. Peanut worms tend to be a bit thicker than a pencil lead, but it could be.

 

[wade1]

Another possibility is spaghetti or medusa worm. Are you seeing lots of tentacles from each worm or just 2?