15-Pod Hydroponics Growing System15 Pod Smart Hydroponics Growing System Kit: Indoor gardening system with a 5. 5L tank, overhead 36W full spectrum LED grow light, and a circulation system to keep nutrients fresh. Hydroponic plants grow faster and healthier than in soil. Simply add seeds, water, and nutrients to start growing. The 30 inch extendable pole ensures vibrant growth, while its educational design lets children observe plants grow. And get year round harvest fresh