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  2. List of freshwater aquarium fish species - Wikipedia

    en.wikipedia.org/wiki/List_of_freshwater...

    Tank size Temperature range pH range Water Hardness Bristlenose pleco, bushynose pleco: Ancistrus spp. The bristlenose genus has at least 59 identified species and many others yet to be named. [16] Males and female both have long "bristles" on their nose, the males having distinctly longer ones. 72-84 F (20-27 C) Adonis pleco, polka dot lyre ...

  3. Freshwater aquarium - Wikipedia

    en.wikipedia.org/wiki/Freshwater_aquarium

    Freshwater aquarium. A freshwater aquarium is a receptacle that holds one or more freshwater aquatic organisms for decorative, pet-keeping, or research purposes. Modern aquariums are most often made from transparent glass or acrylic glass. Typical inhabitants include fish, plants, amphibians, and invertebrates, such as snails and crustaceans.

  4. pH - Wikipedia

    en.wikipedia.org/wiki/PH

    e. In chemistry, pH ( / piːˈeɪtʃ / pee-AYCH ), also referred to as acidity or basicity, historically denotes " potential of hydrogen " (or "power of hydrogen"). [ 1 ] It is a logarithmic scale used to specify the acidity or basicity of aqueous solutions. Acidic solutions (solutions with higher concentrations of hydrogen ( H+) ions) are ...

  5. List of marine aquarium fish species - Wikipedia

    en.wikipedia.org/wiki/List_of_marine_aquarium...

    In a shark aquarium setup (preferably an oval-shaped tank for more active species), there should be much surface area (wide and long tanks with good gas exchange/more room for biological filtration and room for sharks to swim, glide, and turn with little constraint opposed to tall, thin tanks), fine substrate (coarse substrate can irritate the ...

  6. Sabrah light tank - Wikipedia

    en.wikipedia.org/wiki/Sabrah_Light_Tank

    The Sabrah light tank is series of armored fighting vehicles developed by Elbit Systems to cater to the Philippine Army's light tank/tank destroyer requirement. The tracked light tank configuration is based on ASCOD 2 platform, supplied by Spanish manufacturer GDELS - Santa Bárbara Sistemas. [2] The wheeled light tank configuration is based on ...

  7. Activated sludge - Wikipedia

    en.wikipedia.org/wiki/Activated_sludge

    Activated sludge tank at Beckton sewage treatment plant, UK. The white bubbles are due to the diffused air aeration system. The white bubbles are due to the diffused air aeration system. The activated sludge process is a type of biological wastewater treatment process for treating sewage or industrial wastewaters using aeration and a biological ...

  8. Manila Ocean Park - Wikipedia

    en.wikipedia.org/wiki/Manila_Ocean_Park

    E.R. Hitosis and Associates. Website. www .manilaoceanpark .com. The Manila Ocean Park, also known as Ocean Park, is an oceanarium in Manila, Philippines. It is owned by China Oceanis Philippines Inc., a subsidiary of China Oceanis Inc., a Singaporean -registered firm. It is located behind the Quirino Grandstand at Rizal Park .

  9. 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. [10] 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 ...

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