A UK aquaponic farm -- a variant of the water-frugal, plant-growing technique hydroponics -- has been set up by the Bristol Fish Project, reports the BBC.
Volunteers are being offered free or "cost price" fish and green vegetables in exchange for working on the project.
The five-months trial is to "find out if an urban fish farm is viable", said project founder Alice-Marie Archer.
Aquaponics is designed to farm fish and plants together in a space-saving closed ecosystem using a minimum of water.
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