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2. Powerhead (pump) - Wikipedia

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

   An aquarium powerhead is a water pump completely submerged into an aquarium to ... and is useful in freshwater aquaria for allowing free-swimming fish adequate ...

3. 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 ...

4. Aquarium filter - Wikipedia

   en.wikipedia.org/wiki/Aquarium_filter

   In this design, water is fed by gravity to the filter below the aquarium. Prefiltered water is delivered to a perforated plate (drip plate). Prefiltering may take place in the aquarium via a foam block or sleeve in the overflow, or weir siphon, or it may be prefiltered by filter wool resting on the perforated plate. The waste laden water from ...

5. Aquarium - Wikipedia

   en.wikipedia.org/wiki/Aquarium

   An aquarist owns fish or maintains an aquarium, typically constructed of glass or high-strength acrylic. Aquaria with flat walls are known as fish tanks or simply tanks, while those with rounded walls are known as fish bowls. Size can range from a small glass bowl, a few liters in volume, to immense public aquaria of thousands of liters.

6. Recirculating aquaculture system - Wikipedia

   en.wikipedia.org/wiki/Recirculating_aquaculture...

   Reoxygenating the system water is a crucial part to obtaining high production densities. Fish require oxygen to metabolize food and grow, as do bacteria communities in the biofilter. Dissolved oxygen levels can be increased through two methods, aeration and oxygenation. In aeration air is pumped through an air stone or similar device that ...

7. Aquaponics - Wikipedia

   en.wikipedia.org/wiki/Aquaponics

   An electric pump moves nutrient-rich water from the fish tank through a solids filter to remove particles the plants above cannot absorb. The water then provides nutrients for the plants and is cleansed before returning to the fish tank below.