-1 part compost of your choice
-1 part coco coir and/or peat moss1 part perlite
-Kelp meal: 1/4 cup per 5 gallons
-Humic acid: 1/4 cup per 5 gallons
-Mycorrhizal inoculant (endomycorrhizae powder): 1/4- 1/2 tsp per gallon
-Vermicompost (worm castings): up to 20% total substrate
-Bat Guano: up to...