Hello. My plant is day 36 in flower. Everything seems healthy but the top of the plants leaves have started to yellow. Strain is GDP . This plant is under a viparspectra 300. Lights are twenty inches away from the biggest branch. Its in a 5 gallon smart pot with an organic soil mix (30% EWC. Kelp meal. Azomite. The base soil mix is Dr. Earth pot of gold.l) I have fed with a compost tea once before flipping. I have been adding Biobizz Grow 2 ml per gallon with every watering. Pics:
Looks like light bleaching. On top only. No heat stress though. Just back light off a little. Sent from my SM-G935T using Tapatalk
I think you should feed her more bio grow. The recommended dosage for a soil mix like that is 1ml/1 litre of water.
Thank you for the help. You were correct. I pulled up the light a few inches higher, the new growth coming in is green again.
Are you monitoring pH? I see a slight nitrogen burn on the Leaf tips but yellow leaves leads me to believe that your pH has drifted a little bit low. Best of luck!