Aquatic Plant Central - View Single Post - Does it work? ADA glass dropcheck co2 indicator

Laith · 10-11-2006, 02:06 AM

Thanks for the results of this experiment Hoppy.

If I understand how this works; CO2 off-gassing from the aquarium water is diffusing into your RO+KH+reagent water sample, the concept being that at one point it reaches equilibrium between the three?

I'm just wondering how accurate a measure that is of the CO2 dissolved in the tank water? Wouldn't there be some distortion due to the fact that it is measuring an amount of CO2 after it has diffused into an air medium and then back into a liquid? Or does the fact that it reaches equilibrium negate any distortion?

Just curious... though it would probably still be more accurate than the standard KH/pH/CO2 tables.

10-11-2006, 02:06 AM	#26 (permalink)
Laith Senior Member Join Date: Sep 2004 Location: Geneva, Switzerland Posts: 2,307 iTrader Ratings: 0 Plant Points: 65072	Thanks for the results of this experiment Hoppy. If I understand how this works; CO2 off-gassing from the aquarium water is diffusing into your RO+KH+reagent water sample, the concept being that at one point it reaches equilibrium between the three? I'm just wondering how accurate a measure that is of the CO2 dissolved in the tank water? Wouldn't there be some distortion due to the fact that it is measuring an amount of CO2 after it has diffused into an air medium and then back into a liquid? Or does the fact that it reaches equilibrium negate any distortion? Just curious... though it would probably still be more accurate than the standard KH/pH/CO2 tables.