i currently use the general hydro line and i have the canna line.I have had success with both.The Canna is a great line once you figure out what formula and how much to use.They got a feed chart calculator on their site and i think Gen. Hydro got one too/I like em both.yo. what kinds of nutes do you guys use for your dwc's? i use gen hydro for my aerogarden, but was thinking about upgrading for my dwc grow. just wanted opinion on what the best bang for buck is and what gets the best results. thanks!