Looking for an assist in diagnosing the yellowing leaves on the bottom of both my plants.
-5 1/2 week old Northern Lights auto.
-600W LED, fox farms nute cycle with calmag/seaweed, coco/fox farms organic soil. I just measured the nutes and PH and all seem fine? Nitrogen was a little high. PH consistently around 6.5. 70-75 degrees with around 50% humidity.
Any thoughts on the yellowing?