I'm using the same stuff along with some Miracle Grow soil expander, vermiculite or whatever. It seems Miracle Grow makes all kinds of stuff. Regardless, I'm not using any extra nutrients because I believe you can overdose your plants,(too much of a good thing), and I'm seeing some nice results. I'm also growing in an outdoor, enclosed area with a space heater and a 90 watt Big Buddah 2nd gen LED. Temps can still get pretty low 45-50 and pretty warm 70's-80's on days when external temps are in the 40's or more. This is my first grow, Betty Boo, Lowryder#2 and OG Skunk. My first harvested plant went past 70 days and the Trich's never went amber at all, but did go from clear to cloudy so all was good. Just think of the Miracle grow as a product that will do what it says. You will get better production without any extra nutes or effort, and I always try not to over think this. After all, it is a weed. I even tried to kill a couple of plants accidentally but...like a weed, the dam things came back with a vegeance.