Help to identify this

[canadianeh]

I noticed this yellowish/brownish spots on my rocks. Are they algae, diatom, or something else?

I'm in day #14 on cycling. Lights always off.
Ammonia 0
Nitrite 2.18 ppm
Nitrate 52 ppm
Phosphate 0
Salinity 1.026
ph 7.8-8.0
temp 78 F

Hope you can see them on the pictures

 

[Preble]

I would say it's Diatoms.
Looking good so far!
Keep up the good patience


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