- Biochemical sponge filter delivers essential biological filtration, maintaining stable water quality in your aquarium. - Enhances oxygen solubility in water when paired with an air stone, ensuring a healthy environment for aquatic life. Operates quietly, providing a serene setting for your tank. - Designed with four sturdy feet that allow it to be securely buried in substrate without floating. The detachable filter box lets you customize it with your choice of filter media. The fine sponge is ideal for both fish and shrimp tanks, offering versatility for various applications. - An excellent accessory for any aquarium setup, ensuring optimal filtration and water quality. Specifications: - Product Name: Aquarium Sponge Filter - Color: Black - Size Options: - Small: 16cm x 6cm - Medium: 20cm x 6cm Use Scenarios: 1. Perfect for establishing a new aquarium, providing immediate biological filtration to support fish during the cycling process. 2. Ideal for shrimp tanks, where gentle filtration and a stable environment are crucial for the health of sensitive species. 3. Great for breeding tanks, enhancing oxygen levels while maintaining a quiet atmosphere conducive to breeding.