As time passed my leaves seem to keep getting darker, due to excessive Nitrogen. Problem is that Nitrogen is present in both my flowering nutrients 2-2-4 (3ml/L) as my calmag (1,5 ml/L). How can I still prevent toxicity?
Your plants look fine, good colour, and a decent muff on them, so I would change nothing unless I you see a problem, maybe cut some calmag out if your worried about nitrogen.
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60% humidity in tents - and airflow