Good Guys or Bad Guys?

[ronl]

Noticed these moving around on my glass today. Are these good or bad? My first thought was some type of flatworm.

First pic is a group of them. Second pic is the biggest one next to a smaller one. Third pic is the best pic I could get of the big one.

Big one is about 2mm long and smaller ones are about 1mm long.
Thanks

 

[Diesel]

Planeria, yes a flatworm.
Good food for wrasses, other than that you want them out asap.

 

[devilhunt1231]

They do have the appearance of a flatworm in my opinion although I'm no specialist in this area.
Gary

 

[KJ]

Flatworms don't have legs it looks like these creatures does.

 

[Holy_makerel]

Planaria have a wide flat body.

 

[KJ]

Tanaids sp. ?

 

[ronl]

If they have legs, they are very tiny and not visible to the naked eye. They are not as wide as flatworms I have seen in the past, but they do seem to slither along the glass and are pretty flat. I hope they are not harmful flatworms because they are very tiny and hard to see. Makes it tough to suck them all out with a turkey baster.