Re: [AGA Member] CO2 concentration in Hard water

[Roger Miller <roger@spinn.net>]

I think what Red Sea is saying is that *IF* you limit yourself to pH values 
in the range of 6.4-7.2 then a higher KH value allows the water to a have 
higher CO2 concentration.  That is true.  

Roger Miller

On Sunday 09 November 2003 23:06, you wrote:
> Well In addition to my previous question I am quoting this one from the Red
> Sea Carbon Dioxide test lab. "Carbonate hardness (KH), Is yet another
> factor that effects the concentration of CO2. Hard water with a  high KH
> can hold more CO2 than soft water. While it is essentially true that hard
> water with low PH holds the largest amount of CO2 In practice we can only
> use the values most suitable for plants, which are PH 6.4-7.2d KH.
>
> Do they have a point here ???
>
>
> Amit
>
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