Flatworms: how big are they?

[Phantom Phish]

I just noticed a bunch of tiny flatworms on the glass of my tank.

Except these things are really tiny. I literally had to get out a magnifying glass in order to see them clearly. At first I thought they were pods, although they are only half to a third the size of a pod (literally half a mm or less). But when I look at them with a magnifying glass they are definitely flatworms. I haven't found any bigger ones, yet.

Are these babys? ( I thought flatworms reproduced asexually by division ). Should I do anything about them? I'm thinking it might be time for a sixline wrasse, or a golden wrasse. Any thoughts?

[Rick O]

There is no guaranteed predator for them. You may have luck with a 6-line. They seem to follow cycles and may very well go away on their own or produce larger populations. They don't do any harm so I wouldn't worry about them in small numbers.