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Grow QuestionsYellow leaves.

Yellow leaves.

Canna96started grow question 4 years 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!

Canna96

Canna96

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Leaves. Color - Yellow

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Uchibafarmsanswered grow question 4 years ago

That’s not light or nutrient burn. Maybe phosphorus deficiency?

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DoDrugs420answered grow question 4 years 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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