Pet Circle

    Fluval Spec Flex Foam Block Replacement

    Product Details

    1. Suitable for freshwater aquariums equipped with compatible Fluval Spec or Flex filtration systems
    2. Replace foam block approximately every 2-3 months, or sooner if it becomes heavily clogged or damaged
    3. During water changes, rinse the foam block gently using removed aquarium water to preserve beneficial bacteria
    4. Avoid cleaning with tap water as chlorine can harm the bacterial colony

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