LUORNG 100pcs Aquarium Fish Tank Koi Pond Plastic Biochemical Filter Media for Fish Tank Sump Koi Pond Aquaponics Aquaculture Hydroponics Diameter 25mm, White

Using high-quality copolymer materials, long-term soaking in wastewater will not degrade, better than using other materials such as polyvinyl chloride. Special structure, the hollow packing structure has three layers of hollow circles inside and outside. Each circle has 1 edge inside and 36 edges outside. It has been successfully researched and developed for many times, and it is formed at one time. The microbial film growing on the surface of the filler collides due to the fluidization of the filler. Aeration and scouring make the microorganisms in a logarithmic growth period of high activity, and the treatment efficiency is high. Product use: industrial reaction tower filling, industrial desulfurization and denitrification, purification and dust removal, and household fish tank filtration. Packing content: 100pcs MBBR packing fluidized bed packing, model: diameter 25mm/0.98in.