what are these?

[Fireplug]

Im sure its flatworms....but I searched the threads and dont see a pic like these. I know this might be a repeat thread but I have been looking. These are white and spiral with a black spot. (black spot must be eyes?). Just see them on the glass and about 20 to 30 of them. mainly on the back glass. i'll try to get a picture but might b a couple days.

 

[BL1]

Sounds more like spirorbid worms then flat worms to me.

 

[ErinCahir]

+1 BL... the flatworms look like they have "horns".

 

[Fireplug]

Thanks. If so I read about them and seem harmless.

 

[BL1]

They're pretty harmless, just be careful when getting them off your glass as they can scratch it.