[aquamaniac]

Hi Kekon, I'll try to post some pictures about my situation. I tryed almost everything to stop this algae and to push plants to grow but with minimal result. It seems that low nitrates helps a lot. I dose 1/4 teaspoon of 7 % chelated iron and the same amount of micro: CSM+B every two days.
About macros: 0.5 mg/L NO3, 0.2 mg/L PO4, 0.5 mg/L K, 0.1 mg/L Mg every other day.

At the begining the algae look like yours, but in the meantime trasformed like you can see in the pictures. It happened once when it showed sign of weakness : I turned of the pressourized CO2 for 3 days. It seems that this algae love CO2 like plants. So I'm confused now.
No alga = no CO2 with limited species of plants and slow growth, or CO2 with algae.
In this moment I have no idea what should I do with the water parameters. I can't find the right balance between macros and micros.