Description The BOYU SF-103 Super Biochemical Sponge Filter is designed to provide efficient biological and mechanical filtration for medium to large aquariums. It supplies essential oxygen to the water, runs quietly with low energy consumption, and can also be used as a pre-filtration unit for external or top filters. With its nodular foam design and easy maintenance, it creates a clean and healthy environment for fish, making it especially suitable for breeding tanks, fry tanks, and aquariums with sensitive species. Specifications Product Name: BOYU SF-103 Super Biochemical Sponge FilterMaterial: Bio-foam spongeColor: BlackSize: 12 × 12 × 19 cm (approx.)Packing: 1 piece per box Key Features Supplies essential oxygen to aquarium water. Quiet operation with minimal power consumption. Nodular foam design for strong water flow and efficient bacterial growth. Can be used as a pre-filtration unit with external or top filters. Easy to clean and maintain. Ideal for breeding tanks, fry tanks, discus, shrimp, and sensitive fish species. Usage Instructions Soak the sponge in aquarium water for 5 minutes before first use. During maintenance, rinse with drained aquarium water only (avoid tap/hot water). Squeeze the sponge in water to remove trapped air bubbles before reusing. Replace the sponge every 6 months for optimal performance and bacteria growth. Installation Guide Insert adaptors at both ends of the tubes. Connect the tube to the filter body and place it in the tank. Submerge the sponge fully and squeeze to remove trapped air. Connect the tube to the air pump. Adjust air volume as required. Perfect for biological and mechanical filtration, oxygen supply, and quiet operation in medium to large aquariums.
