sickretstarted grow question 2 years ago weeks 4 of 12/12, leafs turned yellow.
now im flush my plants with tap water.
in: 7l 300ppm ph6.7
out: 500ml 200ppm ph6.8
does that mean its not an N overdose?
thank you all! sorry, but i dont know how to leave comments on your answers:/
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Leaves. Color - Yellow