Speghetti Worms, friend?

I have speghetti worms in my sandbed and in the rocks. Are these worms good for the tank?

 

Yes they are. I even bought them last year to add to my sand bed.

 

Oh good

 

I wanted to check deeper after i posted. Here is what I bought and then here is a link about spaghetti/hair worms.

http://www.inlandaquatics.com/shopping/saltwater/saltwater-detritivores-starter-kits?product_id=809

http://www.reefkeeping.com/issues/2002-06/rs/index.php

Edit: btw, inland aquatics is the only place I found that sells stomatella snails. I bought a few as well as a chaeto ball from them and it turns out that chaeto ball was loaded with them and eggs. I have hundreds of them all over my fuge and sump because of that chaeto. I have babies pumping out all the time.

 

Stomatella snails are the best snails there are. And yes spaghetti worms are good if you don't mind the sight.