Cyano or Diatom ID Please

[jfur]

Hi - would appreciate if someone would be able to help me ID whether the attached pictures are Cyano, Diatom, or Dinos. Picture are of the sand bed and under a cheap microscope. Brownish reddish color forming patches over the sand bed with small air bubbles.

Thanks in advance!

 

[Uncle99]

Cyano, Diatoms, both produce air bubbles, so not Dino’s.
I think I see maybe both.
Make sure nitrate and phosphate on point and stable, then remove that stuff manually and treat as if it’s Cyano.
Diatoms will go on their own.
All three of the pest stuff thrives in unstable waters with no nutrients availability.
Time will correct all of that but until then, you keep it clean.

 

[taricha]

closeup pics looks like a community of cyano and gha. maybe other things in there too. But those look like the dominant members.