The Planted Tank Forum - View Single Post - Why do we start co2 an hour before light ?
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post #10 of (permalink) Old 01-07-2013, 02:22 AM
Algae Grower
Join Date: Nov 2012
Location: Stockton,Ca
Posts: 36
Plants release co2 and consume oxygen at night when lights are off. So in the morning your water would already have a high level of co2. Turning on your co2 an hour before lights come on is just wasting co2.
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