Your hydro shop sells the Flora series 3-part nutrients by General Hydroponics. It is pretty easy to use, affordable, and there is lots of "recipes " for growing cannabis with it. That "grow buddy" sysytem on the website is probably very good, but for only one plant. You can build one if you do some homework or import one from any hydro shop that exports. I use the American Hydroponics "Baby Bloomer" ebb and flow which is small, but perfect for 2 or 3 plants with a 250W HPS or 400W. It costs $165 US.