Ever since that big nutrient lockout / toxicity hit my girls, I have been slowly nurturing them back to health. We did a few flushes and started feeding again slowly but surely. On our oldest girls, the big 4 month old bushy ones, started getting some yellow leaves. The old leaves way down the top, like you can see here:
They yellow out and dry up, are the top leaves eating them up? Is it nitrogen we are lacking?
Medium is a mix of coco, perlite and soil.
pH is at 6
EC between 900 to 1000
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