Aquaponics is one of the most sustainable way to produce your own food. Families can grow their own food with very little space and hardly any maintenance besides the setup; but before I get into the benefits of aquaponics, I should explain exactly what it is.
Aquaponics (shown above) is the combination of aquaculture and hydroponics. In it’s simplest form, aquaponics consists of plants (veggies, flowers, ect.) in grow beds with things like clay pebbles or rocks on the bottom that get fed water with fish waste in it. The bacteria on the surface of the grow bed convert the ammonia from the fish waste into nitrogen, or fertilizer, that the plants can use. After the plants have filtered the water for nutrients the clean water leaves the plants and drains back into the fish tank, starting the cycle over again.
The amazing thing about aquaponics is that very many people can be fed with this system; recirculating the water from the fish to plants is sustainable and smart because less water is needed than if you were to do each separately and plants grow as rapidly as if you were giving them artificial nutrients (which can be very expensive) yet you are growing organically. You may also select your favorite fish to be farmed aquaponically. Typically talapia are used but any species works, and the more you like to eat it the better it is for you!
The size of aquaponic system you want to create and the complexity of that system would definitely contribute to the price, but if you wanted to try out a small project at home you can get kits starting around sixty dollars a piece, like the one shown below from backtotheroots.com .
As you can see, aquaponics is an amazing way to feed yourself, and feed your community.