Originally Posted by hueyn
With my water parameters, would I really be able to get to ph7 with ~30ppm of CO2?
As Rex said, yes if you add CO2 gas.
Plants want CO2, not a pH/KH value. The pH/Kh value is used merely to measure CO2, using bufferes to adjust the pH/KH etc will not add CO2........which is what the plants want, not pH buffers etc.
So add enough CO2 to lower your pH to 7.0 with your KH level.
That's all you have to do to get 30ppm of CO2.
Even the more pecise methods, you stikll have a fair amount of play in the measurement, roughly + or - 5ppm and sometimes more depending on test kit range.
Like NO3, PO4 etc, you should use standards for pH and KH before you decide you have say 28ppm, that's just an estimation, not an absolute number.
I've said it's much more useful to focus on a range rather than a discrete number.
Plants have a wide range and you simply do not need such accuracy until you get down to limiting conditions for the plants.
I suggest 20-30ppm and error on the high side and watch the fish.
10ppm might be okay in a lower light tank and if the 10ppm is truly stable, but that is seldom ever the case, so adding more than enough to saturate the plant's CO2 needs is the way to go.
Never pay again for live sex! | Hot girls doing naughty stuff for free! | Chat for free!