Bottom leaves turning yellow

nitrogen def

more nitro

Seems like you feed plenty, but you'd have to look into ppm provided and good habits when watering -- 20% runoff to drain or waste etc each time you irrigate. WAit until top ~1" is dry before repeating process. If you do all of that, it might be a deficiency. Otherwise, i'd consider other causes like lockout (buildup) or pH issues in the substrate it self. Check how much magnesium you provide via the labels of the products you use... ~80-100ppm or so would eliminate it as the cause and point toward lockout. Do the same for nitrogen, but it'd be really really rare for a formula to undershoot the N-component, but i guess it's possible. The dots and the fact it seems to start interveinally points me toward Mg-deficiency symptoms, but the cause i stick to what i say above... investigate soil pH first. Check label ppms of Mg and N too. These things will help illuminate a precise cause before doing anything to the plant or soil.