Aqua Farm - Self-cleaning fish tank that grows food. Fish waste feeds the plants. Plants clean the water. Includes everything you need to get started as well as organic seeds and a discount coupon for a Betta fish.
One Pot, Two Lives | a planter and a fishtank in one to promote a beautiful example of simbiotic living. While the fish's waste provides nutrients for the plant, the plant filters the water that it is fed to provide clean water for the fish. Genius!