Some strange worms?

[poeq]

http://i.imgur.com/Nr4TD.jpg

http://i.imgur.com/DsFtv.jpg


i'm wondering what the spiraly looking things are on the first one, they appeared on my glass a few days ago and i have probably near a hundred of them.

in the second pic i'm wondering what those purple stringy things are...they come out of the cracks of some rock i have and pick up my gravel and pull it the crack they are in which is pretty fun to watch.

 

[Salty B]

First pic: Spirorbids, tiny feather dusters...harmless
Second: more than likely a Spaghetti worm