The Planted Tank Forum - View Single Post - Affordable CO2 sensor?
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Old 12-06-2012, 02:14 PM   #76
mistergreen
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I set the co2 to turn on an hour a head of the lights. It's 2 hours in and it's reading 30 ppm. My target is 40 ppm. I'll set it for 2 hours before the lights.

I could bump up the bubble rate but it's safer and the ph swing is gentler if I leave it be.
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