Strange worm likr creatures?

[Reason]

Recently i have noticed these worm like creatures ranging from 1/4 to 1/2 inch in lentgh swimming in my tank. They wiggle violently. I am new to this site as well and will use this as a introduction. I have a 125 gal reef tank one rabbit, one bullet goby, one algea bleny, three chromis and a clown. I also have a few mushrooms, a gonoporia and various polyps. Multipul cleaners from turbos, crabs, hermitts etc.

Any info on weather these creatures are dangerous or not would be helpful. I see no damage to any livestock but I have not seen any thing like them before. No new L.R. introduced and all is well other than the white wigglers. All attemps to photograph have failed since they only come out in total darkness and I cannot get a clear photo.

[Sweetpea]

I'm sorry that I cannot offer any help, but I wanted to let you know that I saw you pop in the chat room and then pop out... please come back and stay a while - there are usually people in there who would be more than happy to help you out! :-)

[Whoyah]

What color are these mystery worms? Have you seen any on the glass, LR or sand?

[Reason]

They are white, very small (maybe 1/4 to 1/2 inches long). I've seen them swimming and on the glass. If anybody has some advise it would be much appreciated. Thank you.