Cor
Member
Imagine you have a tank with a gravel bottom.
If you measure the KH and pH, you could theoretically determine the ppm CO2. (the pH / KH Table)
For example: KH: 8.0 and pH 7.9. Then you would have 3ppm CO2 in the water, according to the pH / KH table.
If you have a tank with an aquasoil then you measure for example a KH of 4 and a pH of 6.4.
In theory you should have 48ppm CO2 in the water. But we all know that would be impossible without extra CO2 addition.
How should we then reliably determine the ppm CO2 in a scape with aquasoil?
The pH drop is usefull for 30ppm CO2, but if I only want 20ppm CO2. How do you determine that if you can't use de pH/KH chart? Or are we then only depending on a drop checker?
Cheers, Cor
If you measure the KH and pH, you could theoretically determine the ppm CO2. (the pH / KH Table)
For example: KH: 8.0 and pH 7.9. Then you would have 3ppm CO2 in the water, according to the pH / KH table.
If you have a tank with an aquasoil then you measure for example a KH of 4 and a pH of 6.4.
In theory you should have 48ppm CO2 in the water. But we all know that would be impossible without extra CO2 addition.
How should we then reliably determine the ppm CO2 in a scape with aquasoil?
The pH drop is usefull for 30ppm CO2, but if I only want 20ppm CO2. How do you determine that if you can't use de pH/KH chart? Or are we then only depending on a drop checker?
Cheers, Cor