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Grow QuestionsLight Burn or ClaMag issue?

Light Burn or ClaMag issue?

Dippazstarted grow question 5 hours ago

Beginning of light burn or CalMag deficiency? PPFD was measured at 650 umol/m2/s. Currently using MR Root, and Bio Grow, Plant in mid to late Veg stage. Grown in Biobizz black

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Seedleranswered grow question 4 hours ago

As dark green as the leaves are, I would assume it's a nutrient lockout, they look like they would snap clean in half when bending 90% haha How much you fed? At least the amount the feeding chart said, right? then just water for the next days until it looks better i think 650 ppfd is too much, im not sure because i just use photone app and check for the DLI. (google cannabis DLI photone and you find whole charts with autos and photos and the right amount of DLI) I hope that helps

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