The point is not that fertilizer could not be found. The fertilizer I used in my nutrient solution is probably the same as "store bought" premixed liquids. The "store bought" fert. has probably been mixed with water and bottled. Then, you pay for this diluted fert. when you buy these 3 part series fertilizers. They try to claim that there recipe is a secret. Read my thread very carefully and some of these secrets are revealed.