This 2-part (A & B) nutrient formula was developed for use with coco coir growing media in growing pots or bags. (non- recirculating systems). Canna Coco liquid nutrient has been adjusted to the properties of the coconut substrate, it also contains natural compounds, humus-acids and fulvinic-acids through which the plant can optimally absorb all nutrient. Because these Canna Coco A & B are designed to be used together in equal amounts, we sell them as a set.