Thanks Ethan, that was very interesting. I ran CO2 in my flower room for 4 weeks and turned it off for the rest of the cycle. I’m going to be harvesting this Labor Day weekend but I can tell you I have some very heavy producing plants. My best producing plant has ten large colas that are literally the size of milk jugs. It’s insane, I’ve never seen colas this large before. The rest of the flower room have what most people would call big colas, and it’s a beautiful sight to see a field of giant flowers. This is my first time flowering Cannabis, so I wasn’t expecting such a bountiful beginning. If CO2 for three more weeks would have added any more weight to my plants it quite honestly would have created more problems for me than benefits. I’m worried about my monster plant with humidity and to have a whole room like that would be scary. I’ve got my humidity pretty stable at around 50% with only 3% swings +/-. I would think that if CO2 was beneficial for the first 4 weeks there should be an equal benefit the last 4 weeks. There are a lot of myths, traditions and accepted practices in Cannabis growing and it’s hard to tell what is scientific and what is just accepted practices. Each stage of growing seems to require a careful review of techniques and methods as there are so many accepted practices that aren’t backed up by science. I’m now looking at the “to flush or not to flush” argument, and after listening to both sides of the debate, I’m slowly reducing my nutrients down to 350 ppm and the last four days a flush with just water and a flushing product just to be safe. I’m only willing to risk the last 4 days of the flowering period on what is most likely a myth. (Knock on Wood). Yeah just appeasing my superstitious side.
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