I've been here once before asking how long to keep my co2 and lights on which I keep on 8 hours a day. But I according to various co2 to Kh charts my co2 is low. I used a co2 calculator to tell me how many bubbles per minute I should pump in which I've used which I've worked out as one bubble every 5 seconds which I use a defusser with. And I have the light running while its on.
I use API kh which is always 8 (drops) which turns the blue to yellow. The Ph varies between 7.2 and 7.6 which on the chart always shows the tank as low co2 levels.
What should I do?
The tank is 60 liters.
Thanks sincerely in advance