so I am growing 3 strains and The leaves on 1 of 3 started doing this in veg while the others were super happy. Figured it was nitrogen toxicity so I flushed twice with little recovery. Now I am 3 weeks into flower and while the buds look really nice, this same problem is starting on the new growth. Some intense claws and some leaves are fine. I am not feeding any N whatsoever. I water with 10 percent runnoff every 3-4 days and always ph to 6.5.I can’t figure it out. All the other strains are happy as can be! Please help!
Normal light would help. However it looks like a Fe deficiency to me. Pale white splotches? Google it, see if it fits. Good luck.