Ben_RF Posted November 9, 2020 Share Posted November 9, 2020 Something I have wondered for a long time is with passive CO2, should one be concerned about CO2 gas off? For example, instead of filling my CO2 bells first thing in the morning, would it be ok to add CO2 in the evening after the lights go off? Or would the CO2 gas off before morning? This is a question i have been wondering about for a long time. Doing the CO2 in the evening when the lights are off would make my life a lot easier. Link to comment Share on other sites More sharing options...
Daniel Posted November 10, 2020 Share Posted November 10, 2020 In photosynthesis plants combine carbon dioxide and water during the daytime to produce sugars and oxygen. In the night time this runs in reverse and plants respire by consuming sugars and oxygen and giving off carbon dioxide. So providing carbon dioxide at night time doesn't help your plants. Link to comment Share on other sites More sharing options...
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