The Growlite 20g Coir Discs from Haxnicks are a great alternative to peat moss. These coco coir based discs can be hydrated in 720ml of water to produce 2.4L of growing medium. With a pH level of 5.5 < 6.5 and an EC level of <0.5ms/cm, this premium formula mix has been tried and tested by commercial growers. The pH and EC levels are carefully controlled, which ensures that this versatile medium is suitable for a wide variety of plants. As they are easy to handle, these discs are perfect for small space growers, hanging baskets, pots, planters and hydroponics.