Two ids needed

[btschumy]

I found these non-motile algae in my pond aquarium. Looking through my freshwater algae guide I'm unable to place it. Any ideas?

This is a stack of 6 taken through a 40x objective.

Unknown_Algae3_Stack_5.jpg (37.67 KiB) Viewed 3043 times

This two things sort of look like amoeba tests. Stack of 13 though 25x objective.

Two_Tests_Stack_13.jpg (185.17 KiB) Viewed 3043 times

[JimT]

Sorry can't help but good detail in the second image.

[75RR]

The first looks like a germinating alga zoospore, though it would have to evolve more before an ID is possible.
Don't think the spheres in the second image are testate amoebas - either way, if you know the size that might help someone with the ID

[btschumy]

The germinating zoospore is a good guess. Doing an image search for those didn't find anything quite like what I see, but I did find some that looked like this, which is perhaps a slightly different stage of germination.

Algae1.jpg (40.05 KiB) Viewed 2998 times

In the second image of the two "eyes", each eye is about 60 microns in diameter. I would be grateful if someone could hazard a guess.

[75RR]

In the second image of the two "eyes", each eye is about 60 microns in diameter. I would be grateful if someone could hazard a guess.

Ok ... will wild guess Heliozoea