The Living System Starter Kit is perfect for the beginner or the advanced hydroponic grower. Can easily be expanded to accommodate as many as 60 plant cells. Ad the Living System Nutrient Supply Center(sold seperately) for a complete hassle free system. Living System 6 Cell Starter Kit $291.45 Living System Heart $116.55 Living System 6 Cell Kit (ad on) $84.75 Living System Nutrient Supply Center $105.95