If you want great results when using coir coco growing media, it is advisable to use VitaLink Coir nutrient. By doing so, you will ensure that your plants have an optimum level of all the nutrient minerals they require for a successful, fast, healthy growth cycle. This is because VitaLink Coir contains less Potassium to take into account the Potassium levels released from coir media throughout the growing cycle. As well as an optimum level of nutrient minerals, VitaLink Coir contains the same high quality ingredients as the other VitaLink nutrients.