|Aquaponics combines raising fish (Aquaculture) with growing plants in water (Hydroponics). This is done using no soil in a recycling water system.
Beneficial bacteria convert the ammonia produced by the fish into nitrates which feeds the plants. By absorbing the nitrates, the plants clean the water which is then returned back into the fish tank. As the water falls from the plant rafts back into the fish tank it absorbs oxygen which aerates the water for the fish, plants, and bacteria.
Aquaponics is a way of growing food where there is poor soil, limited space, or shortage of good water. Aquaponics makes it possible to grow more food in less space, using no soil, all while using 90% less water than in ground agriculture. There are several different mothods of Aquaponics systems which allow us to demonstrate, teach, and experiment to find optimal growing infromation to take to the nations. All of our vegetables and herbs grown using Aquaponics are used by our campus cafeteria, and the tilapia we raise are available to staff families.
Costs and Production of the Aquaponics Unit at the University of the Nations, Kona, Hawaii