Urban Worm Coco Coir Soil Amendment and Bedding (6)Brand: Urban Worm Features: 100% natural & organic. Each coco fiber brick weighs 1. 4 lbs and can absorb 1 gallon of water. Rinsed repeatedly for low salt content and electrical conductivity. Each block less than 1. 5mS cm salt content pH neutral soil amendment promotes incredible water retention. Creates beautiful texture in soil 100% sustainable alternative to peat moss. Create designer soils to suit your growing operation. The perfect carbon rich