It’s a system that combines aquaculture (fish farming) and hydroponics (growing plants in water) in an mutually beneficial environment. The fish excretion is broken down by nitrogen fixation, which provides nutrients essential to plant growth. This process serves as a natural fertilizer for the plants. In return, the plants help purify the water for the fish. Up to 98 percent of the water is recycled in this system.
We have several blog posts you can consult to learn about how to build your own system for classroom or home use:
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