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  2. Calcium reactor - Wikipedia

    en.wikipedia.org/wiki/Calcium_reactor

    A pH controller is recommended to control the CO2. It works by connecting to the CO2 regulator on the CO2 tank and measuring the pH of the solution inside the reactor via a pH probe. The controller will turn on and off the flow of CO2 based on the pH inside the reactor. The pH range for the typical calcium reactor is 6.5–6.8.

  3. History of video game consoles - Wikipedia

    en.wikipedia.org/wiki/History_of_video_game_consoles

    With more than 101 million units sold, the Nintendo Wii is the best-selling home video game console in the seventh generation. The release of the Xbox 360 began the seventh generation. Video game consoles had become an important part of the global IT infrastructure by the mid-2000s. It was estimated that video game consoles represented 25% of ...

  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. Megaquarium - Wikipedia

    en.wikipedia.org/wiki/Megaquarium

    Megaquarium was released for the PC on September 13, 2018. [4] It was released on Xbox One, PlayStation 4, and Switch on October 18, 2019. [5] The Freshwater Frenzy DLC, which includes freshwater animals, was released for PCs on June 4, 2020. [6]

  6. Aquarium Games, The Next Wave of Farming? - AOL

    www.aol.com/news/2009-11-02-aquarium-games-the...

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  7. Freshwater aquarium - Wikipedia

    en.wikipedia.org/wiki/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. Tropical freshwater ...

  8. Home video game console - Wikipedia

    en.wikipedia.org/wiki/Home_video_game_console

    A home video game console is a pre- designed piece of electronic hardware that is meant to be placed at a fixed location at one's home, connected to a display like a television screen or computer monitor, and to an external power source, to play video games on using one or more video game controllers.

  9. 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.