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  1. When setting up a fish tank for tetras, consider the following1234:
    • Tank size: Most tetras can be kept in aquariums of 10 to 20 gallons, but larger tanks are easier to take care of and provide more room for swimming.
    • Schooling: Tetras do best in schools of 6 or more.
    • Decorations: Well-decorated aquariums with dark substrates and decorations help accent the bright colors of tetras.
    Learn more:
    Most tetras can be kept in aquariums of 10 to 20 gallons, but larger tanks are easier to take care of and give them more room to swim. They do best in schools of 6 or more and will be less stressed and show their best colors in a well-decorated aquarium. Dark substrates and decorations will help accent the bright colors of your tetras.
    www.aqueon.com/resources/care-guides/tetras
    Adequate tank size is crucial for the well-being of Tetra fish. Generally, a 10 to 20-gallon tank is suitable for most Tetra species, but larger tanks provide more stability and space for their natural behaviors. Consider the size of the Tetra species you plan to keep and the number of fish in your school when selecting your tank.
    aquariumfishsource.com/the-complete-tetras-fish-c…
    Tetras do will well in tanks as small as five gallons to the largest tanks imaginable. 20 and 30 gallon tanks tend to be the most popular among hobbyists. They aren't overly large, making them more manageable, and they still allow for many different species of fish. The larger the tank, the more fish you can have.
    pethelpful.com/fish-aquariums/Popular-Home-Aqua…

    The Right Tank Size

    • Ideal Tank Size: A 10-gallon tank is a good starting point for a small group of Tetras. This allows them to swim, school, and be playful.
    livingwithfish.com/tetra-fish-care-guide-tips-for-a-th…
     
  2. 31 Amazing Types Of Tetra Species (The Complete List)