Shop Monotubs | Fully Colonized Grain Spawn | Grain Spawn | Substrate | Liquid Culture Jars | Strains/ Species | Courses | Grow bags | All Monotubs Fully Colonized Grain Spawn Grain Spawn Substrate Liquid Culture Jars Strains/ Species Courses Grow bags Monotubs $30.00 Add To Cart Fully Colonized Grain Spawn $35.00 sold out Add To Cart Full monotub grow kits $70.00 Add To Cart Monotub Maia $65.00 sold out Add To Cart Decker's Dirt Substrate $15.00 Add To Cart Grain Spawn $15.00 Add To Cart All-in-one grow bag $35.00 Add To Cart Liquid culture jars 400ml $20.00 Add To Cart