Advanced nuts with Golden Tree, watering about 3 times a week, 20% runoff. Tap water. I think your rite. It looks like a excess of potassium which is locking out iron. I just flushed with ph water and it looks worse. Any more advice?
I am growing in 65% coco and 35% perlite. My plants are from seed, water is 6.1 ph when I feed, EC is around 1.2 in veg. There is no deficiency’s in old growth. I am thinking it is broad or russet mites. Does anyone know what this is?