Double Barrel Black Layered Bio Sponge Filter For Up To 35 Litres

The double 9-layer sponge filter provides both mechanical and biological filtration, making it an ideal solution for maintaining a healthy aquarium. Perfect for breeding tanks or shrimp aquariums, this filter is quick and easy to set up, requiring just seconds to install. Despite its simplicity, the bio sponge filter ensures efficient filtration, promoting a clean and stable environment for your aquatic life.

Replacement sponges for these aquarium filters can be found HERE.

Key Features and Important Notes:

• 2025 Model with Improved 9-Layer Bio Sponges

  • Available Sizes:

    • XY-2822 – Suitable for aquariums up to 35 litres.
    • XY-2831 – Suitable for aquariums up to 20 litres.
• Provides both mechanical and biological filtration.
• Air infusion chamber produces minute bubbles, increasing oxygen solubility.
• Ideal for fry tanks and fish that require low-flow conditions, such as bettas and killifish.
• Made from 100% virgin polypropylene for durability and safety.
• Requires an air pump to operate.
• Suitable for both freshwater and saltwater aquariums.
• Comes with a 1-year warranty (T&Cs apply).
• Part of the Castle Dawn Aquatics BASICS range, which is packaged in eco-friendly, non-printed recycled materials without unnecessary printed inserts. Designed to be affordable, environmentally responsible, and perfect for all fishkeepers.
• ⚠️Warning: Due to its popularity, counterfeit versions made from non-aquatic safe materials are being sold on various low-cost apps/sites. Be aware that these cheap imitations may pose a risk to the health of your aquarium inhabitants.