long white floating string all over the rock and glass help!!!

[marine]

this morning when i woke up i noticed there are many long white hairy string which look like hair algea but they are white instead of purple or green. I'm shock, so i tried to remove as much as i can by doing water change, but after removing them they appear to be more. Would anyone deal with this stuff before? i have no idea what is it? help!!!. Thanks in advance

[fishytime]

Does it look like a spider web? If so, probably a vermnatid(sp?) snail.

[tlo]

A pic would be really helpful if you can take one.

[Navarchus]

Does it look like that?
http://www.reefkeeping.com/issues/2005-01/rs/images/image009.jpg