Flatworms?

[beaver-man]

Last night around midnight, I happened to look in my tank with a flashlight. I spotted something moving rather quickly along a rock. It was about 3/4" long and 1/4" wide and moved in an undulating way. I am somewhat positive it was a flatworm, although, definitely not a Planaria flatworm.

Should I be worried? What might it eat, what should I look out for? How would I remove it and/or what might eat it? Might it be eating anything in my tank?

[Darbex]

Are you sure it wasnt a bristle worm? I havent seen a flat worm that large. Either way they eat dietrus and left over food. If it is flatworm then I would get something to treat it.

[myjohnson]

Is it a white flatworm?

Seems kinda big to be a flatworm.

Edit: wizard ^^^

[beaver-man]

it was kind of clear or opalescent/pearlescent