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  2. Pond loach - Wikipedia

    en.wikipedia.org/wiki/Pond_loach

    The pond loaches prefer a water pH of 6.5–8.0, but, as a temperate-climate freshwater species, will tolerate far more acidic conditions, even for extended amounts of time, with little negative reactions. This makes the pond loach a great choice for first-time aquariums and for those who want a hardy fish tank able to withstand a few mistakes.

  3. Coldwater fish - Wikipedia

    en.wikipedia.org/wiki/Coldwater_fish

    Japanese koi carp are coldwater fish. The term coldwater fish can have different meanings in different contexts.. In the context of fishkeeping, it refers to ornamental fish species that tolerate the temperatures of a typical indoor aquarium well and do not require a heater to remain active, as opposed to tropical fish whom need a heater to survive in the room temperatures of temperate climates;

  4. Aquarium - Wikipedia

    en.wikipedia.org/wiki/Aquarium

    A freshwater aquarium with plants and various tropical fish. The underwater tunnel in the London aquarium. An aquarium (pl.: aquariums or aquaria) is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, aquatic ...

  5. Aquarium heater - Wikipedia

    en.wikipedia.org/wiki/Aquarium_heater

    An aquarium heater is a device used in the fishkeeping hobby to warm the temperature of water in aquariums. [1] Most tropical freshwater and marine aquariums are maintained at temperatures that range from 22 to 30 °C (72 to 86 °F). [1][2][3] The types include glass immersion heaters and undergravel heating.

  6. Common goldfish - Wikipedia

    en.wikipedia.org/wiki/Common_goldfish

    The common goldfish is a breed of goldfish and a family of Cyprinidae in the order cypriniformes. Goldfish are descendants of wild carp from East Asia. [1] Most varieties of fancy goldfish were derived from this simple breed. [2] [better source needed] Common goldfish come in a variety of colors including red, orange, red/white, white/black ...

  7. Raceway (aquaculture) - Wikipedia

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

    A raceway, also known as a flow-through system, is an artificial channel used in aquaculture to culture aquatic organisms. Raceway systems are among the earliest methods used for inland aquaculture. A raceway usually consists of rectangular basins or canals constructed of concrete and equipped with an inlet and outlet.

  8. Water aeration - Wikipedia

    en.wikipedia.org/wiki/Water_aeration

    Water aeration. Fountains aerate water by spraying it into the air. Water aeration is the process of increasing or maintaining the oxygen saturation of water in both natural and artificial environments. Aeration techniques are commonly used in pond, lake, and reservoir management to address low oxygen levels or algal blooms.

  9. Waste stabilization pond - Wikipedia

    en.wikipedia.org/wiki/Waste_stabilization_pond

    The system may consist of a single pond or several ponds in a series, each pond playing a different role in the removal of pollutants. After treatment, the effluent may be returned to surface water or reused as irrigation water (or reclaimed water ) if the effluent meets the required effluent standards (e.g. sufficiently low levels of pathogens ).

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