Huijukon Air Pump - Premium Biochemical Sponge Filter for Aquariums - AquaForge

Sponge filters provide both biological and mechanical filtration: they offer an ideal surface area for bacteria to attach, while the sponge traps larger debris, ensuring clean water without the risk of contamination. Dual filtration with sponge: biological filtration is rapid and oxygen levels are increased. Optimal filtration is achieved through the combined action of the sponge and the biological foam. High-quality foam with a large surface area, insoluble in water and non-toxic. The foam's open-pore structure is maintained even after prolonged use.