Looks like your nitro deficient. Even in flower they need a little nitro. Your nutes are 0-15-40 so its getting 0 nitro. The bottom leaves are the first to go during flowering anyway, but after the flush I would add just a little nitro. I use supernatural bloom, its 14-8-19 + Fox Farms Beastie Bud its 0-50-30 and Fox Farms Cha Ching its 9-50-10. I use all at 1/4 strenght in waterfarms then I add Sweet. I top off with water for a week then flush with florakleen, then straight water for a couple days and start over again. Works with most indica dominant strains.
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