- Natural Durability: Our aquarium filter media bio balls are crafted from robust natural materials, ensuring long-lasting performance. They effectively absorb particles and debris, addressing muddy water issues and promoting stable water quality. - Comprehensive Package: Each package contains four packs of filter media bio balls, totaling approximately 500 grams (1 pound) of fish tank filter media. The bio balls are conveniently packed in a standard plastic mesh bag (not a filter bag). Before use, rinse thoroughly with water and place them in your aquarium or filter system. - Effortless Maintenance: Maintain optimal filtration by easily rinsing these lightweight bio balls regularly. Their durable mesh bags simplify handling and cleaning, making filter maintenance a hassle-free task. - Versatile Compatibility: These bio balls are suitable for various filtration systems, including canister filters, pool filters, and hang-on-back filters. Enhance your aquarium's clarity and health with our bio balls. - Practical Applications: Ideal for both freshwater and saltwater tanks, our bio balls help maintain a balanced ecosystem. Use them in new setups to establish beneficial bacteria or replace old media in existing filters for improved water quality. - Key Attributes: - Material: Natural, durable materials - Size: 500 grams (1 pound) in a mesh bag - Function: Efficiently absorbs debris and stabilizes water quality - Compatibility: Fits most filtration systems Optimize your aquarium's health and clarity with our high-performance bio balls, designed for easy use and maintenance.