This kit has what you need to get your coco-grown plants started. Includes one 1 Liter bottle of each A & B plus a bottle of Roots Excelurator Gold. House & Garden Cocos? A & B is formulated to provide the perfect ratio of nutrients while taking into account the cation-exchange capacity of coir. Coco coir as a medium has unique properties that are distinct from soils and hydroponic media.