Algae ID Under microscope

[serez]

Found a bunch of interesting looking stuff while looking at my Dino problem... curious what they are, especially the first purple and green one. I scraped this off the glass today. It was a thick brown patch but doesn’t look like Dino on the sand bed. The last picture came from the sand bed and is positively amphidinium. I’m watching to see if there’s increase in different algae like diatom after dosing nitrate. So if u know what these are; or where to find an ID page for microscopic images, please let me know

 

[taricha]

first one is coralline algae.
last one is ostreopsis dinos.
3rd one could be the start of ulva-like green algae.
some of the tiny brown cells are diatoms.
most others are not easily identifiable.

 

[serez]

first one is coralline algae.
last one is ostreopsis dinos.
3rd one could be the start of ulva-like green algae.
some of the tiny brown cells are diatoms.
most others are not easily identifiable.

Oh **** I thought the last one was amphidinium! Makes sense actually... crazy I got a microscope and still misdiagnosed ‍

 

[serez]

first one is coralline algae.
last one is ostreopsis dinos.
3rd one could be the start of ulva-like green algae.
some of the tiny brown cells are diatoms.
most others are not easily identifiable.

Do you think the tiny yellow cells are a different type of Dino? I zoomed in 2500x and they didn’t quite look like the last picture. They’re much smaller and some were moving a lot when first took out of the tank

 

[taricha]

no the smallest golden brown cells are not one of our problem dinos.
some other random flagellate / ciliate etc.