Self Cleaning Fishtank That Grows Food

Here's an interesting project currently on Kickstarter.com. It is a small aquarium where the fish waste products are used as fertilizer by the plants above. With farmland disappearing, an approach such as this could make a real difference in the availability of quality food.

If you want to invest in this, you have to hurry: there's only two weeks left to go and it's already fully funded. Here's video of the project.