I would have mentioned it if I had brother
Biobiz lite should be easier to get.
Listen everyone, if you can't find Roots or Biobiz use what you can get and post up the results. I have not driven around the country trying every possible soil mix and I think I covered this topic is sickening detail but how I did learn was by experimenting.
I have used the following soils in the road to the current mix.
Wallmart Gorilla soil
Sunshine mix
Assorted Garden soils
Harvest Moon
Biobiz
Canna Soil
Every product Lowes and Home dePOT sells thats organic or close to it.
Even used Chicken manure before but as I have stated before this current recipe grows the best weed I have grown using a dry mix soil. I see some amazing samples these days grown using liquids so my way is not the only way! But it works incredibly well if you follow the directions. I expect others to tweak and play with the mix