mer, 13/04/2022 - 18:24

Aquaponics is a symbiotic integration of two food production disciplines:
1-aquaculture, the practice of farming aquatic organisms;
2-hydroponics, the cultivation of plants in water without soil.
Aquaponics combines the two within a closed recirculating system.
This 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 filtrate or add chemical fertilizers.

Aquaponics relies on the food introduced for fish, which works as the system’s input. As fish eat this food and process it, they transform it into urine and fecal matter, both rich in ammonia, which in sufficient quantities can be toxic to plants and fish.

Afterward, the water (now ammonia-rich) flows, together with uneaten food and decaying plant matter, from the fish tank into a biofilter. Afterward, inside this biofilter, bacteria break everything down into organic nutrient solutions (nitrogen-rich) for growing vegetables.

As we can see, aquaponics freshwater systems rely on 3 main components: freshwater aquatic animals (the fish), nitrifying bacteria, and plants – and all three living entities depend on each other to survive. Without the bacteria to consumer the fish waste, plants wouldn’t have a usable form of nutrients either – which is why biological filtration is crucial. And thanks to plant growth, nutrients are removed from the water, leaving it clean for the fish.