Fish farming requires very high-efficient and reliable pumps to transfer brackish water / seawater from oceans to fish farming ponds or tanks with the necessities to operate continuous and to have high-corrosion resistance.
One of the main system used is called RAS (Recirculation Aquaculture System) which requires pump operation to lift treated water from reservoirs to ponds or tanks at a certain temperature and flow, to recirculate and filter water for oxygenating and avoiding the creation of bacteria or other contaminating particles (such as waste products excretion containing carbon dioxide, ammonia and faeces).