Only single leaf, still cal/mag?

Walloom
Walloomstarted grow question 6y ago
Anyone knows what causes a single leaf to show rust patterns, almost like cal/mag deficiency. Whole plant looks healthy except for this one leaf, literally. DWC, and I use tap water
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Week 6
Leaves. Color - Dark-brown
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YourGrowmie
YourGrowmieanswered grow question 6y ago
It looks like light burned leaf. Second leaf looks like a little bit of Ca deficiency.
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Walloom
Walloomanswered grow question 6y ago
Ty @Yourgrowmie, I can definitely see it being light burn. She grew so fast and I haven’t adjusted light. It was at 16 inches and got light back to 24 inches. Hopefully, that was the issue.
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