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Hey DGC, Dude, Scotty and Guru,

So my grow is in my basement and has an ambient CO2 level of 1,100-1,800 ppm. The problem is that in the spring and fall when it is nice out like now doors and windows get opened and the ppm can drop to 700-800 ppm in my room over 4-6 hours. If it gets hot and windows and doors shut it will go back up to over 1,000 in the same time. The CO2 is just a plus and I didn’t dial in my grow for CO2. I’m using organic dry amendments, running low 80s, 60% RH, 600-700 PPFD under HLG Scorpion Diablo. My question is will this fluctuation in CO2 affect my plants metabolism and harm them in some way? I’m in week 6 of flower now and this has been an intermittent problem over the last couple weeks.