I live in Florida. I order my Seachem products through the net. I add floursh, f. excel, f. potassium, f. iron, equilibrium, and a calcium suplement on a regular basis. I don't wast my time, or money, with trace, nitrogen or phophates. Still, this schedule is getting expensive. I run out of excel very quickly, and I always place an order for excel and one or two of the other products every month or so. Is there an easier method to fertilize in the U.S.? The flourish products are just too darn expensive. I now have pressurized co2, but I still add excel every day. Do I need to be doing this?