Aquaponics is an exciting style of growing that combines the cultivation of fish with the art of growing plants. The fish waste provides nutrients for the plants while the plants clean the water for the fish. Typically, in fish production, the waste becomes toxic for the fish, so water must be exchanged to provide the right conditions for fish health. In a hydroponic garden, the nutrient rich water solution becomes depleted and needs to be exchanged.
When you combine aquaculture and hydroponics, both growing systems solve the other ones water waste issue as well as increase efficiency of space, maintenance, and inputs.
Nitrogen Cycle – Fish produce waste in the form of ammonia. Bacteria convert the ammonia into nitrite and then into nitrate. Both ammonia and nitrite are toxic to fish at high concentrations and not the right source of nitrogen for plants to grow. Fish can handle much higher concentrations of nitrate however, and it is most plants preferred source of nitrogen.