594797 An installation for fish farming on land comprising a hermetically sealed shed, a plurality of pools 1 located within the shed, the pools 1 being located on or in the ground at a height above sea level, a pump for pumping water from the sea to the pools 1, emptying means 3 for removing water from the pools by pumping or gravity at a rate similar to a rate at which water is pumped to the pools, dispensers 4 configured to dispense fish food into the pools, and an artificial light source.