Hey gang. Worry or not? Took these 4 leaves off one plant (No1) mostly from the bottom. Darker green 1 from higher. No obvious pests, fastidious with PH and alternating nutes at 50% and water. Rest of plant looking ok to me but 1st timer so happy to stand corrected. TY x
From the pics supplied those plants look pretty darn healthy! If those leaves were from the lower part or from inside the canopy where they are not receiving much light or airflow then this is totally normal, just remove them and keep on keeping on 👍.
On bottom less light is available and leaves turn yellowish for the reason.
Ph level,
Nutrients lock.
Do watering, check run off water ppm, ph and it’s be your Gide lines.