subtrate tubes?

I'll take pics when I get home if necessary but this might be Assn easy ID for you guys. I have hundreds of small worms (spaghetti worms?) And I observed them today in my sand picking up pieces of sand and creating tubes out of it similar to feather duster tubes. These tubes are also on several of my live rocks. As far as I can tell none of my hermits or my 6 line wrasse are eating these guys. Is this something to worry about? As far as I cab tell they are leaving my other inhabitants alone.

 

pics.... definately pics

 

Ok you can kinda see what I'm talking about in the bottom left corner but this doesn't show the worms. They are about the diameter of a hair and less then an inch long. White almost translucent in color and there allot of them that come out at feeding times or when the lights are out. You can actually see them lifting pieces of sand and forming the tubes.

 

Please look at this link towards the bottom, under Tube Worms.

Worm Hitch Hikers

 

Here is a decent pic of the tubes. I couldn't find the worms in that link. They look like tiny white hairs and I can't get them on camera.

 

these are some of the best sand cleaners you can wish for don't kill them let them grow i wish i had a million of them

 

There's actually a problem when they get too plentiful. They can make the sand a solid brick.

 

I have those all over my tank. They are harmless, and I've always called them spagetti worms.

 

My sea cucumber constantly breaks up the surface, possibly why I havent succummed to that problem so far.

 

Spaghetti worms are the common name for terebellid polychaetes. Those are Chaetoplerids.