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  2. Maritime hydraulics in antiquity - Wikipedia

    en.wikipedia.org/wiki/Maritime_hydraulics_in...

    The amphora shipwreck discovered at Grado in Gorizia, Italy, which dates to around 200 CE, and contained what archaeologists hypothesized to be a ‘hydraulics’ system to change the water in live fish tanks, since other evidence indicates the ship's involvement in the processed fish trade (Beltrame and Gaddi 2005).

  3. Siphon - Wikipedia

    en.wikipedia.org/wiki/Siphon

    An anti-siphon valve is also required here to prevent pressure drops in the water supply line from suctioning water out of the toilet tank (which may contain additives such as "toilet blue" [53]) and contaminating the water system. Anti-siphon valves function as a one-direction check valve. Anti-siphon valves are also used medically.

  4. 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 ...

  5. Siphon (mollusc) - Wikipedia

    en.wikipedia.org/wiki/Siphon_(mollusc)

    The siphon is part of the mantle of the mollusc, and the water flow is directed to (or from) the mantle cavity. A single siphon occurs in some gastropods. In those bivalves which have siphons, the siphons are paired. In cephalopods, there is a single siphon or funnel which is known as a hyponome.

  6. Freshwater aquarium - Wikipedia

    en.wikipedia.org/wiki/Freshwater_aquarium

    Other equipment includes a canopy or hood as an aquarium cover, an aquarium stand or base, lighting accessories, a heater, a thermometer, air pumps, filtration apparatus, airstones, fish food, a fish net, water conditioner, water quality testing kits, a siphon hose or gravel cleaner, and a bucket for water changes. When first starting an ...

  7. Calcium reactor - Wikipedia

    en.wikipedia.org/wiki/Calcium_reactor

    A feed pump takes aquarium water into the reactor, controlling the volume of water exchange. This is important because a high rate of water flow into the reactor can reduce its efficiency, thus resulting in underproduction and a waste of CO 2. Some reactors siphon water into the input of the reactor's re-circulation pump.

  8. 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 ...

  9. Mariotte's bottle - Wikipedia

    en.wikipedia.org/wiki/Mariotte's_bottle

    Mariotte's bottle is a device that delivers a constant rate of flow from closed bottles or tanks. It is named after French physicist Edme Mariotte (1620-1684). A picture of a bottle with a gas inlet is shown in the works of Mariotte, [ 1 ] but this construction was made to show the effect of outside pressure on mercury level inside the bottle.