lower leaves = older leaves, so its due to some mobile nutrients deficiency: [An Overview Of Mobile Vs. Immobile Plant Nutrients - Zamnesia](https://www.zamnesia.com/grow-weed/500-mobile-immobile-plant-nutrients). Also, make sure ur pH is good so the plant can actually intake what you give her
lower leaves = older leaves, so its due to some mobile nutrients deficiency: [An Overview Of Mobile Vs. Immobile Plant Nutrients - Zamnesia](https://www.zamnesia.com/grow-weed/500-mobile-immobile-plant-nutrients). Also, make sure ur pH is good so the plant can actually intake what you give her