The Planted Tank Forum - View Single Post - Affordable CO2 sensor?
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post #46 of (permalink) Old 11-18-2012, 05:14 AM
Planted Tank Guru
Join Date: Dec 2005
Location: Sacramento, CA
Posts: 21,015
Have you figured out the relationship between the ppm in the air volume vs. ppm in the adjacent water? If the room air is at 500 ppm, and conventional wisdom isn't way off, that would correspond to around 3 ppm in the water. But, without that relationship the ppm in the air volume doesn't tell us much. I'm sorry my knowledge isn't sufficient for me to figure out the relationship.

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