1 biochemical sponge

Looking for a replacement biochemical filter for your aquarium? Want to keep your aquarium clean? This filter is for you. Practical and efficient, it's easy to install in your aquarium. Features: - Color: White - Material: Biochemical fiber - Dimensions: 50 x 50 x 1 cm - Use this filter for 3 days for instantly clean water. - The filter cotton better retains impurities and separates dry particles from wet particles. - Easy to clean and install. - Suitable for all types of aquariums. - Purify your aquarium water with this high-density filter.