Researchers have developed an aquaponics system that turns fish waste into food.
The new aquaponics system works by taking food waste, grinding it up and drying it out in an oven. It is then turned into tiny pellets which are fed to fish. The water from the fish tanks is then fed into plastic containers growing lettuce. The lettuce absorbs the nutrients from the fish waste and the water is then fed back into the fish tank.
Not only does this system reduce the amount of food that enters the waste stream, it also significantly lower the cost of commercially growing fish.Read more at SUNY College of Environmental Science and Forestry