Worm I.d. Needed

[meowzer]

Well here I was looking at my tank (

) as this white thing slithers across the back

looks like a white cat whisker...of course the pic stinks, but it was the best I could get and now it has disappeared....Hope someone can help tell me what this is....so I can either freak out big time or relax
Attachment 224667

 

[sharkbait09]

omg i have the same thing on my tanks glass they are realy skinny and have like lil hooks on their heads

 

[meowzer]

Does anyone have a clue? I saw no hooks, no teeth (LOL) no anything...just a thin white line

 

[puffer97]

not exactly sure what it is but i had one in my tank so i picked it up and took it to my lfs to see if it was bad and they told me it would not hurt a thing