A sustainable food production system will help immensely when you have to feed your family during a zombie outbreak. Aquaponics will definitely come to your rescue during emergencies. This system is a combination of aquaculture and hydroponics. Aquaculture is raising aquatic animals like fishes, crabs and snails while hydroponics involves cultivating plants in water. Thus a symbiotic environment is used for cultivation of food. This system can easily be started in your backyard. Equipment you will need for this system is thermostatically controlled water heater, pump, clay or gravel hydroponics grow bed and kits to test pH of water. Tubing to supply water to the beds is essential.