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2. Powerhead (pump) - Wikipedia

   en.wikipedia.org/wiki/Powerhead_(pump)

   A switching or variable-voltage system (also known as a "wavemaker") is commonly used in reef aquaria to more closely simulate the movement of ocean water. [ 1 ] Water circulation is vital to proper biological filtration of most saltwater aquaria (particularly those using the Berlin Method ), and is useful in freshwater aquaria for allowing ...

3. Aquarium - Wikipedia

   en.wikipedia.org/wiki/Aquarium

   Around 1908, the first mechanical aquarium air pump was invented, powered by running water, instead of electricity. [30] The introduction of the air pump into the hobby is considered by several historians of the hobby to be a pivotal moment in its development. [31] Pike in an aquarium c. 1908, at the Belle Isle Aquarium, Belle Isle Park

4. Aquarium filter - Wikipedia

   en.wikipedia.org/wiki/Aquarium_filter

   Canister filters were initially designed to filter drinking water, under low pressure. Canister filters for aquariums [17] use high water pressure, from a properly powered pump, to force water through the dense filter media. A pump can draw water from an under-gravel filter, and run it into a canister for double filtration.

5. Marine aquarium - Wikipedia

   en.wikipedia.org/wiki/Marine_aquarium

   Many marine aquariums include a sump, which is an external container connected to the main aquarium with a water pump. In most setups, the sump is located below the aquarium and is fed water from the main tank via an overflow. An overflow at its simplest is a round hole drilled towards the top of the tank, connected via tubing to an output ...

6. Raceway (aquaculture) - Wikipedia

   en.wikipedia.org/wiki/Raceway_(aquaculture)

   Trout do best in spring water because it keeps a constant temperature, while catfish need a strong flow, about 80 litres per second for every 0.4 hectares of raceway. A backup water supply should be positioned so, if the water supply or pump fails, it can flow by gravity into the start of the raceway. [16]

7. Pump - Wikipedia

   en.wikipedia.org/wiki/Pump

   Mechanical pumps serve in a wide range of applications such as pumping water from wells, aquarium filtering, pond filtering and aeration, in the car industry for water-cooling and fuel injection, in the energy industry for pumping oil and natural gas or for operating cooling towers and other components of heating, ventilation and air ...