Biochemical sponge for aquariums, filtration accessories for aquariums, ultra-quiet air pump for aquariums with biochemical foam filter.

Biochemical sponge material: Made from food-grade materials, it is perfectly safe and easy to clean. Suitable for aquariums up to 75 liters. The biochemical sponge provides excellent biofiltration, quiet operation, and ensures good water circulation. Dimensions: Depth 4.8 cm x Height 7.8 cm, inner diameter: 1.5 cm. This replacement sponge is ideal for sponge filters. It improves biological filtration capacity, reduces maintenance, increases oxygen levels, and creates an environment conducive to bacterial growth, thus contributing to a clean aquarium. This large biochemical sponge is ideal for freshwater fish, fry, goldfish, young fish, shrimp, small fish, and breeding tanks. Recommendation: Replace every 5 to 6 months. Quantity: 4 units.