BLACK BIOCHEMICAL COTTON 50×30×2CM

This black biochemical cotton filter pad measures 50×30×2cm and is specifically designed for aquarium filtration systems. The thick, fine-pore material effectively removes impurities and helps maintain clean water quality. Each package contains 4 pieces of filter pads. Key features: • Dimensions: 50×30×2cm • Fine pore structure for enhanced filtration • 2cm thickness for optimal performance • Compatible with circulation filtration systems • Package includes 4 filter pads • Designed for aquarium water purification This biochemical cotton filter pad is ideal for maintaining aquarium water quality by reducing impurities. The black color and dense structure make it effective for mechanical and biological filtration. The 2cm thickness provides excellent surface area for beneficial bacteria growth while maintaining good water flow. Suitable for both freshwater and marine aquarium systems.