What kind of water are you using? It sort of looks like nutrient burn because you can see the burned tips and the edges of the leaves are starting to show it as well. Even though you’re organic, maybe too many ppm’s In the water? Just a thought
@Nifty, I just use RO water. I use compost/casting teas weekly. I’m pretty sure it was from overwatering in plastic nursery pots. As soon as they hit bigger pots, the new growth showed no problems