What is this on the leaves
OutdoorUKstarted grow question 5y ago
What is this on the leaves growing in coco and feeding at 1 ec with a little run off
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Leaves. Color · Dark-brown
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Robertsanswered grow question 5y ago
Hard to say without a picture. Coco requires cal mag as a additive. Best guess without seeing it. Or your ph is not right in coco. Coco requires heavy irrigation regularly and ph monitoring constantly if going in and out water.
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