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Yellow leaves.
Canna96started grow question 5y ago
7 week old auto leaves turning yellow. Not sure if it's a deficiency or light burn? I am feeding cal-mag, maxibloom, and koolbloom. My light is a mars hydro sp250, and I am down to 11 inches of space from the tallest part of the auto to the LED. Any help is appreciated!
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Uchibafarmsanswered grow question 5y ago
That’s not light or nutrient burn. Maybe phosphorus deficiency?
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DoDrugs420answered grow question 5y ago
Take a look over here, seems like micronutrient burn, too much calmag probably.
https://2fast4buds.com/news/what-is-overfeeding-and-how-to-fix-it
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