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What is Aquaponics?

“Aquaponics is a synergistic growing technique in which both fish and plants are grown together in the same system.”  (The Aquaponics Association)

What is Aquaponics (1)The word aquaponics comes from the combination of aquaculture (cultivating fish under controlled conditions) and hydroponics (growing plants without soil in nutrient rich water). But aquaponics is much more than the combination of aquaculture and hydroponics. It is an ecosystem that also includes essential colonies of microorganisms.

Aquaponics solves many of the problems and environmental issues associated with aquaculture while hydroponics retains the benefits of both. Today’s modern aquaculture systems are great at growing lots of fish in a small area, but produce fish waste that must be dealt with. Hydroponics offers many benefits, including the fact that it is more efficient than soil farming in both density and growth rate and can be done almost anywhere. But hydroponic systems use man-made chemicals as feed and must dump the nutrient solution periodically when salts and chemicals build up, creating waste management and pollution issues.

The microorganisms in an aquaponic system turn the “waste” in aquaculture into the valuable input for hydroponics. This more natural input results in food that is healthier and better tasting. The filtered water from the plants is then returned to the fish thereby closing the loop. This conserves a considerable amount of our precious water resource and gets rid of the waste management and pollution issues. The beneficial microorganisms also create an environment that hinders the harmful organisms that are such a problem in hydroponics and aquaculture.

The result is truly something that is greater than the sum of its parts.Aquaponics vs Hydroponics

Aquaponics then is “an environmentally friendly, natural food-growing method that harnesses the best attributes of aquaculture and hydroponics without the need to discard any water or … add chemical fertilizers.” (Aquaponic Gardening Community, November 2010)

 

 

1. There are many forms of aquaponics. If you simply take water from your aquarium and use it on your potted plants, you are in a sense practicing aquaponics. But the term usually refers to the form of aquaponics that is a closed loop recirculating system.

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