GrowLite Coir Discs are a Peat-Free multi-use coir based growing medium that replaces compost. Coir is made of a premium formula mix with added nutrients for faster growth & healthier plants. This is tested and tried by commercial growers! Ideal for small space growers and indoor growers as it is easy to store and handle. GrowLite is a cleaner and more hygenic alternative to peat based compost and has carefully controlled PH and EC levels which guarantee suitability for a wide variety of plants!