I like the Epsoma's Biotone Starter Plus, which has many beneficial bacteria, endo and ecto mychorrizhae, and humates and other soil ammendments (Feathermeal, Dehydrated Manure, Bone Meal, Alfalfa Meal, Greensand, Humates, Crab Meal, Cocoa Meal & Sulfate Of Potash Magnesia). I usually get the...