Is this mold or what?

JTrim
JTrimstarted grow question 5y ago
This white color like paint on the leaves only at the top cola are concerning me. I know I’ve had nutrient deficiency and trying to recover but is this something else that I have to remove?
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Buds. Other
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CRiSPrGrow
CRiSPrGrowanswered grow question 5y ago
that is magnesium deficiency, add calmag the problem will stop spreading almost instantly, hope this helps ! 🚀
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