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What deficiency is this

Needweedstarted grow question 3y ago

I got my bubble kush auto from RQS 65cm high here, in week two of flowering. This sign appears on older leaves. 4 days ago i did a flush and after dry, lightly fertilised with 450ppm. Last watering with runoff check. The ppm was cca the same(450).My tap water is 330ppm already.

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Leaves. Color - Yellow

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GrowingGrannieanswered grow question 3y ago

Calcium. Don't know why - there are several causes and therefore several remedies - but it's lacking calcium. Again, please start a diary.

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jacobjake7answered grow question 3y ago

Could be septoria. Hold it to the light and see if there's orange or a glow around the dots, could possibly be bugs.

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