CNS17 Coco and Soil Formula has been formulated for use mainly with coir fiber as the growing substrate, but is suitable for use in most substrates. CNS17 Coco and Soil is designed with high calcium levels and provide a full spectrum of elements for a wide range of vegetables and flowing plants. It is considered a professional strength, stand alone nutrient that can be used in conjunction with supplements if desired. The chelates contained in CNS17 Coco and Soil aid in the absorption of trace elements such as iron, manganese, and zinc. Balanced with proper nutrient ions for plant metabolism CNS17 Coco and Soil both do what virtually no other single part nutrient can: provide a broad spectrum of elements for your plants.