Urban farming firm 'GrowUp' lets you raise fish and grow plants easily in your backyard with the GrowUp Box. The box is made of an upcycled shipping container and has two levels. The top level has plants while the bottom level contains Tilapia fish. GrowUp designed the box to be almost entirely self-sustaining with only minimal input needed. The plants work to purify the water while the fish's waste fertilizes the plants above.
After setting up the box, the only thing that you need to do is provide energy for the pumps and fish food. GrowUp recommends that the fish are fed vegetarian protein since it's a more sustainable form of food. If everything is done correctly, the microfarm annually outputs over 130 pounds of fish and 440 pounds of vegetables.