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Is this a problem? Rust mold?

maelxichstarted grow question 4y ago

Are these spots fungal? I had this happen last grow in this tent with a humidifier, though I’m not using it for this grow. I’ve bleached the tent and pruned the leaves. Am I in trouble?

maelxich

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Leaves. Other

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Robertsanswered grow question 4y ago

Looks like the beginning of potassium deficiency.

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Aqueminianswered grow question 4y ago

Its just starting so don't worry to much. Its either potassium deficiency or cal-mag deficiency. I'd start with cal-mag as it's much harder to over feed cal-mag. If it's a potassium deficiency you'll know because it will get bad over a few days but it's easy to fix and takes only a few days to stop symptoms.

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