) it was in 2006, the number of bubbles is calculated from the volume of the aquarium and the power of the luminous flux, there is a formula for this.
The third photo shows an aquarium of 100 liters, a metal halide lamp of 150 W and 4500K.
There was installed a carbon dioxide generator CERA, on tablets.
The first photo shows an aquarium of 240 liters, it was at the start, the supply of carbon dioxide, if my memory serves me, is 10-15 bubbles per minute.
Light 6 lamps of 40W Sera-Plant, different spectrum and light output.
I did not focus on the measurements of the pH, I everywhere added a supplement from blue clay and acidified the water with peat extract, our water is hard, it is difficult to peroxidize it.
I did everything intuitively, observing the state of the plants. If the plants actively emitted oxygen and brown algae and filamentous did not appear on their leaves, then they were fine.
An excellent indicator of the state of water is the underwater form of ricia, which I converted into an underwater form, if it is good, then other plants will be fine.
In an aquarium with scalars, 260 liters, only light 2x150 W, metal halide and fertilizers without carbon dioxide supply.
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