Never fill buckets part ways it will likely give an undesirable water table. Read here for understanding.
Discuss different watering methods for growing your own weed from seeds. Our community members give helpful tips on how pot size and material, as well as environmental factors affect growing cannabis.
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your humidity is an issue if anything it should be higher during the day and lower at night. you want about 65% light on. Read here for understanding of importance.
Ok i was gonna sit down and write out a whole article but i have been lazy so instead instead I'm going to copy paste because im lazy. This is not my work so let start. You may find this very long but its worth the read. Some may want to skip ahead. I have added here and there to what i feel is...
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your light is a blurple use both red and blue switches on and adjust to the desired intensity. You have WAAAAY TO MUCH LIGHT. Lux measures mostly green spectrum and cannot be used as a crossover for full soectrum LED with white. I CANT STRESS THIS ENOUGH. Your ppfd should be around 150 on those plants right now At 8000 lux under just blue you are at 950ppfd thats as much as a full grow plant can handle in flower under 12/12 and is you LARGEST issue right now.
turn both switches on red and blue and do the following
use this link and select red + blue LED as the source. You will see you want no more than 2000 lux for this stage
Online calculator to convert illuminance (lux) to PPFD (micromoles per second per meter squared).
www.waveformlighting.com