Crafted from 100% natural, organic, and sustainably sourced coir pith, the Pure Harvest 75L Coco Brick is an excellent substrate for multiple crops. It is ideal for indoor gardening, urban gardens, balconies, patios, and small-scale applications like pots and containers. This coir compost is perfect for starting various plants as it is low in salts, nutrient-free, and pH-balanced. You can easily add fertiliser to meet specific needs. Just add 18-20L of water to expand out to 75 litres.