worms in the water

[alicialav]

first of all, what are these!!? they are like little eye-lash sized leeches! this is N0T what I want to see in my aquarium water, can anybody offer an insight or two on my situation. thanks, and sorry for being a tool and asking the same questions that everybody's already asked. but on the other hand, new posts keep the forum going, n'est ce pas (or whatever)? thanks again for the help, forum bretheren.

 

[MrAquarium]

More then likely it;s Planaria, little tiny white worm looking things, they don;t harm anythng, most fish will eat them if they see them int he water swimming around.
What Causes it it over feeding, lack of gravel vacuming, lack of water changes.
Other then that, I don;t know all that tecnical stuff about um....Just do a water change, vac the gravel, and try not to over feed your fish and it should be gone pretty quick..