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  2. Community aquarium - Wikipedia

    en.wikipedia.org/wiki/Community_aquarium

    Most freshwater aquarium fish do well in water that is soft to moderately hard, and that has a pH between 6 and 8. Brackish water aquaria are a special case and need dedicated community tanks. While a few freshwater and marine fish can adapt to brackish water, most cannot.

  3. Brackish-water aquarium - Wikipedia

    en.wikipedia.org/wiki/Brackish-water_aquarium

    Generally, aquarists need to maintain a specific gravity of around 1.005 to 1.010 depending on the species being kept, but practically all brackish water fish tolerate variations in salinity well, and some aquarists maintain that regularly fluctuating the salinity in the aquarium actually keeps the fish healthy and free of parasites.

  4. Recirculating aquaculture system - Wikipedia

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

    The first step of nitrification in the biofilter consumes alkalinity and lowers the pH of the system. [11] Keeping the pH in a suitable range (5.0-9.0 for freshwater systems) is crucial to maintain the health of both the fish and biofilter. pH is typically controlled by the addition of alkalinity in the form of lime (CaCO 3) or sodium hydroxide ...

  5. Substrate (aquarium) - Wikipedia

    en.wikipedia.org/wiki/Substrate_(aquarium)

    For freshwater aquaria, gravel is the most common substrate. To prevent damage to fish, gravel should not be sharp. Aquarium gravel can be as coarse as pea-sized or as fine as 1–2 mm. [1] It is available in a number of colors, and may be naturally colored or dyed, and may have a polymer seal to ensure it does not affect water chemistry. [1]

  6. Marine aquarium - Wikipedia

    en.wikipedia.org/wiki/Marine_aquarium

    Marine aquarists commonly test the water in the aquarium for a variety of chemical indicators of water quality. These include: Specific gravity, a relative measure of water density, is normally maintained between 1.020 and 1.024 in aquariums with fish only, and 1.023 and 1.026 for aquariums containing invertebrates. [21]

  7. Aquarium - Wikipedia

    en.wikipedia.org/wiki/Aquarium

    Public aquariums keep fish and other aquatic animals in large tanks. A large aquarium may have otters, [3] dolphins, [4] sharks, [5] penguins, [6] [7] seals, [8] and whales. [9] Many aquarium tanks also have plants. An aquarist owns fish or maintains an aquarium, typically constructed of glass or high-strength acrylic.

  8. Iconic MS restaurant pleads guilty to selling frozen, foreign ...

    www.aol.com/iconic-ms-restaurant-pleads-guilty...

    The U.S. government also has listed four unidentified co-conspirators involved in supplying Mahoney’s with the fish. Co-conspirator No. 1: A co-owner of Mary Mahoney’s and possibly Anthony ...

  9. Freshwater aquarium - Wikipedia

    en.wikipedia.org/wiki/Freshwater_aquarium

    For a tropical fish tank, maintaining a warm environmental temperature ranging between 75 and 86 °F (24 to 30 °C) enables different tropical fish to thrive at different temperatures. [2] Aquarium substrate usually consists of sand or gravel. Aquarium substrate is important for the fish's health and replicating their natural environment.

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