I ended up ordering the Base Trio from General Hydroponics this week, as well as Cal Mag. After watching a few youtube videos on autos I decided on this line. It's easy to use. I like that you can tell that they go together. There's a few other brands that have pretty much the same thing going, but the packaging doesn't match... and it makes me wonder, as a newbie to this experience, if they do go together, or if I'd just be mixing and matching random micros/grow/bloom nutes from the same brand, and leave me wondering if I'm using them properly. Gen. Hydro is just easier to follow and get my head around. I still haven't received my Cal Mag, I went with the Sensi Cal Mag, it's ratio is 4:0:0. Another Cal Mag I noticed being used a lot has a ratio of 2:0:0. One fo the youtube growers said that its hard to get nute burn from Calmag, or that its hard to over do it, so i decided to go with what seems to be the stronger one. Hope it arrives soon!