Roots Organics Coco Fiber has a near perfect natural pH level (5.2-6.3) for optimum nutrient uptake. Roots Organics Coco Fiber is premium aged and composted for 24 months, and meticulously washed to remove excess sodium. Roots Organics Coco Fiber has been specifically designed with increased fiber content for an ideal air to water ratio, and is ideal for mixing into your outdoor potting soils, or into your indoor potting soil media. Roots Organics Coco Fiber is composed of 100% pure coco fiber from coconut husks. How to Use Roots Organics Coco Fiber: Add water to expand block, makes approximately 2.1 cubic feet or 16 gallons of media.