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Brown spots on one leaf
Apollo11started grow question 5 years ago
Plants are week 5 and have one leaf with brown spots mid way on the plant. I think calcium can anyone confirm this or what is it??
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Leaves. Color - Dark-brown
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The8thChevronanswered grow question 5 years ago
Yep looks like a calmag problem. Too much phosphorus can lock out calmag. If it's just one leaf, I wouldn't take any drastic action
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