Hair algae and a worm?

[Stef777]

Using a 200x (all I could get my hands on) I took this trying to ID algae. I can tell there is GHA, I think dinos, and what was that worm??? Thanks!

 

[Dread Pirate Dave]

Using a 200x (all I could get my hands on) I took this trying to ID algae. I can tell there is GHA, I think dinos, and what was that worm??? Thanks!

Flatworm of some sort?

 

[Stef777]

Flatworm of some sort?

I don't think so, doesn't match the shape. Looks more like a nematode... Not sure