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  2. Freshwater aquarium - Wikipedia

    en.wikipedia.org/wiki/Freshwater_aquarium

    Aquarium substrate is important for the fish's health and replicating their natural environment. Aquarium decoration can consist of live or plastic plants, driftwood, rocks, and a variety of commercially made plastic sculptures. Though rocks and plants have more practical purposes for the health of the fish and the water quality.

  3. Aquarium filter - Wikipedia

    en.wikipedia.org/wiki/Aquarium_filter

    The water trickles through the trays, keeping the filter wool wet but not completely submerged, allowing aerobic bacteria to grow and aiding biological filtration. 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 ...

  4. Asellus aquaticus - Wikipedia

    en.wikipedia.org/wiki/Asellus_aquaticus

    Aquarists worldwide are showing increasing interest towards A. aquaticus as a low-maintenance freshwater aquarium pet and tank cleaner. While often sold as live food for other fish, some keepers in the US and Germany have started selectively breeding A. aquaticus to be sold as pets, usually from online platforms like eBay.

  5. Raceway (aquaculture) - Wikipedia

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

    Trout do best in spring water because it keeps a constant temperature, while catfish need a strong flow, about 80 litres per second for every 0.4 hectares of raceway. A backup water supply should be positioned so, if the water supply or pump fails, it can flow by gravity into the start of the raceway. [16]

  6. Recirculating aquaculture system - Wikipedia

    en.wikipedia.org/wiki/Recirculating_aquaculture...

    Recirculating aquaculture systems (RAS) are used in home aquaria and for fish production where water exchange is limited and the use of biofiltration is required to reduce ammonia toxicity. [1] Other types of filtration and environmental control are often also necessary to maintain clean water and provide a suitable habitat for fish. [ 2 ]

  7. Giant gourami - Wikipedia

    en.wikipedia.org/wiki/Giant_gourami

    A gourami in a community tank will snap and charge any other fish which are small enough for it to bully. Like most aquarium dwellers, giant gourami can be quickly raised with larger, more passive fish. However, if other fish are added to a tank, either large or small, they might be killed within a short period.

  8. Rock bass - Wikipedia

    en.wikipedia.org/wiki/Rock_bass

    Rock bass. Rock bass are native to the St Lawrence River and Great Lakes system, the upper and middle Mississippi River basin in North America from Québec to Saskatchewan in the north down to Missouri and Arkansas, south to the Savannah River, and throughout the eastern U.S. from New York through Kentucky and Tennessee to the northern portions of Alabama and Georgia and Florida in the south.

  9. Freshwater biology - Wikipedia

    en.wikipedia.org/wiki/Freshwater_biology

    Standing water is a type of freshwater habitat that mainly consists of lakes and ponds. This habitat has limited species diversity because they are isolated from one another and other water systems, unlike running water. [7] Standing water experiences the process of stratification, which is when water is layered due to the oxygen content. [6]

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