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Rusty brown spots on edges of leaves near top of the canopy

MediciGrade
MediciGradestarted grow question 3y ago
I'm not sure if this is nutrient burn or a cal/mag issue (deficiency or lockout), or something else. Anybody know what is likely to be causing this, and how to treat it?
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Week 10
Leaves. Tips - Burnt
Leaves. Color - Dark-brown
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Hashy
Hashyanswered grow question 3y ago
I don't think it's a cal mag problem. It could be due to using up the potassium. I would be tempted to leave your nutes as is but increase the bloom slightly and see how that goes.
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