ECOLIFE Conservation ECO-Cycle Aquaponics Indoor Garden System with LED Light Upgrade Grow fresh organic produce all year long on your 20 gallon fish tank with no water changes Fish fertilize the plants. Plants clean the water for the fish in this closed loop, sustainable system Advanced, programmable LED lights help your plants grow faster using less energy. 4 grow settings, remote control, and built in timer give you the most efficient, easy to use system available Instructional videos, email and phone support included Excellent learning tool for all ages with curriculum offered for teachers