TechnologyTuesdays: #Aquaponics is a #food production #system that combines conventional #aquaculture (raising aquatic animals such as snails, fish, crayfish or prawns in tanks) with #hydroponics (cultivating plants in water) in a symbiotic #environment.#YES #Worldwide #TechnologyTuesdays #UrbanAg #UrbanFarming #RebuildingCities #STEM #STEAM