Aquaponics (Figure 2) integrates aquaculture (raising fish or other aquatic species) and hydroponics (raising plants without soil using a nutrient solution) into one system. An aquaponics system mimics nature by creating a symbiotic relationship where the fish produce nutrients for the plants, and the plants purify the water for the fish. The ability to maximize production of fish and plants in a limited space and with limited water are promising prospects, especially in areas where arable land and water are scarce. While aquaponics systems have exciting potential for producing food, successful management requires a proper understanding of this complex system.
Figure 2. Aquaponics system with three fish tanks of tilapia, water treatment barrels, and two raceways for growing leafy greens. The black length of hose coiled on the ground is used to warm the water for the fish during cold seasons. Source: ECHO Staff
We hope that this decision tree will help guide you through some of the initial questions to ask if you are considering venturing into the world of aquaponics.
Helpful resources for further exploring aquaponics:
- “Small Scale Aquaponic Food Production” FAO, Rome, Italy http://edn.link/caezyh
- “Aquaponics Production Manual” Kentucky State University http://edn.link/72pa7j