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The most prevalent hydraulic pump used in maritime situations in ancient Rome was the bilge pump, which functioned to siphon collected water out of a ship's hull (Oleson 1984). The bilge pump was an improvement on the first hydraulic pumps used in antiquity: force pumps.
A scuba diver at work in the tank. The water column was 14 m (46 ft) high, [9] held 1 million litres (260,000 US gal; 220,000 imp gal) of saltwater and accommodated about 1,500 tropical fish from over 100 species. A team of scuba divers conducted daily feedings, with 8 kg (18 lb) of feed-fish, and cleaned the tank daily. [7]
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 ...
In some impulse pumps the gas trapped in the liquid (usually water), is released and accumulated somewhere in the pump, creating a pressure that can push part of the liquid upwards. Conventional impulse pumps include: Hydraulic ram pumps – kinetic energy of a low-head water supply is stored temporarily in an air-bubble hydraulic accumulator ...
Aquarium heaters combine a heating element with a thermostat, allowing the aquarist to regulate water temperature at a level above that of the surrounding air, whereas coolers and chillers (refrigeration devices) are for use anywhere, such as cold water aquaria, where the ambient room temperature is above the desired tank temperature. [47]
Responsibilities for aquarists often include maintaining and cleaning tanks, [5] [1] preparing food for the animals (including dietary adjustments), [1] feeding the animals, [1] providing mental stimulation for some animals, [5] monitoring animals for sickness or injuries, [1] administering medication and vitamins to animals, [5] maintaining the water quality and water temperature of tanks, [1 ...
Living Color Aquariums (also known as Fish Tank Kings on National Geographic Wild [1]) is a custom acrylic tank manufacturing company with headquarters in Fort Lauderdale, Florida. [2]) They design and manufacture custom acrylic aquariums , water features , acrylic art, and themed exhibits.
The water returns to the aquarium like rain. [14] Alternatively, the wet/dry filter may be placed below the tank. In this design, water is fed by gravity to the filter below the aquarium. Prefiltered water is delivered to a perforated plate (drip plate).