Quote:
Originally Posted by dizguy
I'm just going to throw this out there and I don't know if it has been tried. I have read that fluctuations in Kh affect the CO2 / Ph formula. Why not isolate a solution of known Kh value like in a drop checker to use with a probe?
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I wouldn't do that, it greatly increases the response time of the pH probe and controller. pH probes can react instantly to pH changes but in that set-up you'll have to wait an hour or two for the pH inside the drop checker to equalize to the tank's pH. With that set-up you'll really just have a fancy digital drop-checker instead of a pH controller.