Also I can not find a place that sells hydroponic nutrients. Does Wal-mart sell it or maybe I just can not find it?
Well i have the best answer for you.. I am Ana, a gardener, i have a small hydroponics set in my house from last 3 years. Before 2 years i started using "Advanced Nutrients" products and i really suggest you to go for it. Just check out Hydroponics Nutrients at "Advanced Nutrients"