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Grow QuestionsDoes anyone recognize this nutrient deficiency / issue?

Does anyone recognize this nutrient deficiency / issue?

Neo_007started grow question 4 years ago

Variables: - Using platinum LED p9-xml, xml2 grow lights for veg with just the veg switch turned on: - Using well water run through sediment then charcoal filter, but still starts at 200p The issue affects almost only plants grown inside, so thinking the lights

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Leaves. Color - Yellow

Leaves. Color - Pale

Leaves. Color - Dark-brown

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Neo_007answered grow question 4 years ago

It was solved by Epsom Salts... did some googling, and found a similar issue. We were using well water through sediment and carbon filters, which. brought the PPM from 220 to 180, but still had 180 ppm of something (a mystery to this day ), we added 1tsp of Epsom salts to the res and watered in, that brought the PPM to 1350, we used it. 1350 was too high and the leaf tips burnt, but they recovered from the mag deficiency within 2 days. Diluted to 800 ppm to partial flush after that. All looks good now.

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