Im using ro water it only has 21ppm, ill give it alitle extra iron n sulfer to see if it helps, just question. U dont thing its normal cuz of stretching?
78°f. Humidity 55%
Coco coir n perlite
First day of flower
Sf4000 about 2 ft above plants
I notice this yellowing on , only new growth on all my plants
Any advice? Just noticed it 1 hr ago after i switch lights on after a 24 hr of darkness