James and William are retro-fitting an existing aquaponic system to improve water flow in the media bed. Without the extended pipes, one side of the bed would not have adequate water circulation. This could lead to poor water conditions.
In the background we see a hydroponic media bed already growing large amounts of basil and tomatoes. This is because we are still far from an adequate stock of fish to produce enough waste/fertilizer in the aquaponic system, whereas in hydroponics the appropriate nutrients can be dosed immediately.
In the hydroponic system, James’ and William’s improved water circulation is not as important because there is not nearly as much organic material to risk foul conditions. It’s important to understand the trade-offs between aquaponics, hydroponics, traditional soil agriculture, and other growing methods.
For IDEA Public Charter School, the aquaponic system is an invaluable STEM education tool to teach students about the ecosystem of fish, plants and bacteria. But it is important to note that depending on circumstances, aquaponics is not the answer for every growing situation.