House & Garden Coco Base Nutrient is composed of liquid nutrients and trace elements and contains no bulking agent. This makes the transfer from the root zone to the plant easier. Coco Base Nutrient is composed of the purest high quality nutrients that are available on the market to date, including Eddha-Fe (iron).This enables the plant to absorb the nutrient quickly and effectively. In short if you want an excellent start for your plants use House & Garden A&B Coco.