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  2. Raceway (aquaculture) - Wikipedia

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

    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. A continuous water flow-through is maintained to provide the required level of water quality, which allows animals to be cultured at higher ...

  3. Infinity pool - Wikipedia

    en.wikipedia.org/wiki/Infinity_pool

    The high cost of these pools often arises from the elaborate foundation systems that anchor them to hillsides. [citation needed] The "infinite" edge of the pool terminates at a weir that is 1 ⁄ 16 to 1 ⁄ 4 inch (2 to 6 mm) lower than the required pool water level. A trough or catch basin is constructed below the weir. The water spills into ...

  4. Fishkeeping - Wikipedia

    en.wikipedia.org/wiki/Fishkeeping

    An aquascaped freshwater aquarium. Fishkeeping is a popular hobby, practiced by aquarists, concerned with keeping fish in a home aquarium or garden pond.It is a practice that encompasses the art of maintaining one's own aquatic ecosystem, featuring a lot of variety with various water systems, all of which have their own unique features and requirements.

  5. Facultative lagoon - Wikipedia

    en.wikipedia.org/wiki/Facultative_lagoon

    Facultative lagoon (polishing pond) providing tertiary treatment after a constructed wetland in Hamburg-Allermöhe, Germany. Overflow from the facultative lagoon may be routed through one or more polishing ponds supporting lower populations of anaerobic micro-organisms and a higher proportion of aerobic organisms adapted to survival in lower concentrations of organic material.

  6. Water aeration - Wikipedia

    en.wikipedia.org/wiki/Water_aeration

    With the release of large bubbles from the system, a turbulent displacement of water occurs which results in a mixing of the water. [5] In comparison to other aeration techniques, coarse bubble aeration is very inefficient in the way of transferring oxygen. This is due to the large diameter and relatively small collective surface area of its ...

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  8. Garden pond - Wikipedia

    en.wikipedia.org/wiki/Garden_pond

    This garden pond has two ponds separated by a waterfall with a one-foot drop; generally, the fish in the upper pond are smaller, and ones in the lower pond are larger. Ponds may be created by natural processes or by people; however, the origin of the hole in the ground makes little difference to the kind of wildlife that will be found in the pond.

  9. Aquarium filter - Wikipedia

    en.wikipedia.org/wiki/Aquarium_filter

    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 the aquarium spreads over the drip plate, and rains down through a medium.