I know this question has been asked before, but i never bother to read it since it did not concern me. Well, i should have because now i have the same problem. I have these thin hair-like worms crawling on the glass of one of my tank. Anyone remember what these were and if they were of any harm to my frogs? A picture of them were posted on kingsnake awhile back, but i cant seem to find it. Thanx in advance.