You are both correct! Everyone wins. I went to FoxFarms, clicked "Feeding Schedule" which brought up a pair of PDFs, on for soil systems, one for hydroponic systems. They both listed the sort-of same six products with different concentrations on different schedules. The only product of the six that was "different" was FoxFarm Grow Big (6-4-4) vs. FoxFarm Grow Big Hydro (3-2-6). The other five feeding products were identical.