Premium Round Air Pump Bio Filter Sponge for Aquariums
High-density porous foam structure ensures superior mechanical and biological filtration, trapping debris while fostering beneficial bacteria growth. Precision-cut edges and uniform holes maximize water flow efficiency, reducing clogging and maintenance. Ideal for freshwater and marine tanks, sumps, and hydroponic systems. Made from non-toxic, durable polyester fiber that resists degradation in water. Lightweight design fits most air pumps, enhancing oxygenation and filtration simultaneously. Perfect for hobbyists and commercial setups seeking reliable, long-lasting filtration media. Buy in bulk for unbeatable wholesale prices—stock up for your aquarium business or large-scale projects.