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  2. Aquarium fish feeder - Wikipedia

    en.wikipedia.org/wiki/Aquarium_fish_feeder

    Fish feeders are usually clamped to the wall of the tank just over the water. Most designs consist of a hopper which is loaded with a variety of dry food, a timer which rotates the hopper at regular intervals (dispensing food in the process), and a method of setting the interval between feeding and the amount of food dispensed.

  3. Aquatic feeding mechanisms - Wikipedia

    en.wikipedia.org/wiki/Aquatic_feeding_mechanisms

    Though suction feeding can be seen across fish species, those with more cranial kinesis show an increase in suction potential as a result of more complex skull linkages that allow greater expansion of the buccal cavity and thereby create a greater negative pressure. Most commonly, this is achieved by increasing the lateral expansion of the skull.

  4. Gill raker - Wikipedia

    en.wikipedia.org/wiki/Gill_raker

    Rakers are widely varied in number, spacing, and form. By preventing food particles from exiting the spaces between the gill arches, they enable the retention of food particles in filter feeders. [1] The structure and spacing of gill rakers in fish determines the size of food particles trapped, and correlates with feeding behavior.

  5. Raceway (aquaculture) - Wikipedia

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

    Solid wastes which accumulate at the raceway bottom can be removed by pumps. [19] Oxygen levels in the water can be kept high if the raceway units are placed one after the other with intermediate drops over weirs, or by the use of aeration systems such as pumps, blowers and agitators. [17] [19] Generally the water should be replaced about every ...

  6. Silver carp - Wikipedia

    en.wikipedia.org/wiki/Silver_carp

    The silver carp is a filter feeder, and possesses a specialized feeding apparatus capable of filtering particles as small as 4 μm. The gill rakers are fused into a sponge-like filter, and an epibranchial organ secretes mucus, which assists in trapping small particles. A strong buccal pump forces water through

  7. Feeder fish - Wikipedia

    en.wikipedia.org/wiki/Feeder_fish

    Guppies are a common example of feeder fish. Feeder fish is the common name for certain types of small, inexpensive fish commonly fed as live food to other captive animals such as predatory fishes (e.g. aquarium sharks, farmed salmon and tuna) or carnivorous aquarium fish (e.g. oscars, gar, grouper and rays), turtles, crocodilians and other piscivores that naturally hunt in fresh, brackish or ...

  8. Filter feeder - Wikipedia

    en.wikipedia.org/wiki/Filter_feeder

    Unlike the other large filter feeders, it relies only on the water that is pushed through the gills by swimming; the megamouth shark and whale shark can suck or pump water through their gills. [6] Manta rays can time their arrival at the spawning of large shoals of fish and feed on the free-floating eggs and sperm. This stratagem is also ...

  9. Freshwater aquarium - Wikipedia

    en.wikipedia.org/wiki/Freshwater_aquarium

    A biotope aquarium is an aquarium that is designed to simulate a natural habitat, with the fish, plants, and furnishings all representative of a particular place in nature. [5] Because only species that are found together in nature are allowed in a true biotope aquarium, these tanks are more challenging and less common than the other themes.

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