What are the major components of an Aquaponic system and why are they important?

There are three major components of an aquaponic system and they are plants, fish and bacteria. They are considered important because it is due to these components that the entire system functions. The fish grow and live because the bacteria present in the media removes the toxins from the wastewater and supplies it to the plants, which in turn absorb the required nutrients and filter the water to be reused by the fish in the tank.