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2020Growerstarted grow question 5y ago
Anyone know what it’s deficient on?
Solved
Leaves. Color - Yellow
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horsemouthanswered grow question 5y ago
it could be a magnesium deficiency (especially the second picture). i looked your nutes and and dont know them, so if they contain magnesium forgot what i wrote.
under powerful leds, in my experience, plants need more magnesium and potassium than under hps or older leds.
cheers
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