My roommate use's the age old Mirco, Bloom, Grow, Age old's Kelp extract, ex-calibur, and some product from the other tomato. He's growing Auto Flower's I can honestly say I don't think he knows a whole lot about what he's doing, he doesn't ever Ph his mix, nor does he really keep track of when he feed/how much, or even simple things like the exact day he planted or what day the plant started flowering. In my opinion he's one mess of a grower, who usually gets shitty yields and products... that being said I gave him the Age old organic samples that I received a couple months back, and thats all he's been growing with since... he just harvested yesterday and I'm actually pretty impressed he took a little more cautions this time at growing and stopped using that GAWD AWFUL miracle grow powdered all in one and now things are Looking 3 times better than they ever were for him.