gave a defoliation this week as the canopy was so dense i was worried about airflow. also been suspecting ph issues due to a cheap pen so have bought a blue lab one. she's the smallest in my tent atm but has many bud sites. will see how it progresses in next few weeks
My Zkittles Og turned out the same as yours. Looks identical. I ph’d my water every watering and used cal mag and still came out looking like deficiencies.