Plants don’t take in CO2 during the dark cycle. Any quality controller has a photocell.

Best IPM is prevention indoors. Outdoors is a different game. Don’t bring pests in your grow and you’ll never see them. Every indoor garden with pests is the result of the grower bringing them in. If you do bring them in. Accept the responsibility and take the loss. Clean up and start over.

Consistency is key. Plants are not happy with CO2 levels fluctuating in a wide range. This is why you need a way to control the levels. Would you want to be in a room with oxygen levels that fluctuate below what you need randomly throughout the day? Hell no. You can get an AC Infinity CO2 controller for around 100 bucks. There is no excuse to…

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