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Yellow Leaves

420cropperstarted grow question 5y ago

Can anyone give me an answer as to why this one plants starting to get a yellow colour coming threw in the middle of the leaves? I don’t think it’s due to heat as the other plants are growing a nice green

420cropper

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Leaves. Color - Yellow

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DoctorGreenThumbanswered grow question 5y ago

Hard to tell by the pic but it looks like magnesium deficiency to me.

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