MSU Fertilizer in Semi-Hydro

[greenpassion]

I use RO water, and when I purchased my countertop RO system, a container of "Orchid Fertilizer for pure water came with it. I make up gallon jugs of RO water, and when it's feeding day, I use 1/2 tsp in one gallon jug of water. I don't know what ppms mean, and as I said, my water is pre stocked in gallon jugs. My question for Ray I guess, is am I using this stuff right? It's been a few months, and since I started using it, my orchids are really reacting well-new roots and some spiking...???