Aquaponics is a method of growing plants without soil and added fertilizers. If you are familiar with hydroponics, then think of aquaponics as taking it to the next level. Add in a tank of water with fish and you have aquaponics. The fish contain bacteria in their digestive tract that is excreted in their urine and feces. These bacteria break down the ammonia into nitrites and nitrates, providing nutrition for the plants.
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