Introducing the Mantis Bio Filter Sphere 2kg, a revolutionary addition to your aquarium setup. This innovative filter media is designed to provide maximum efficiency when it comes to treating NH4-N and NO3-N. Say goodbye to conventional media and welcome the most technically advanced bio-filtration substrate on the market. With its open-flow architecture and inert ceramic material, the Mantis Bio Filter Sphere boasts the largest usable surface area available. Each sphere has a microporous surface, providing up to 54cm² for the growth of various microorganisms. This promotes the formation of a stable and highly active bio-film, improving the overall health of your aquatic ecosystem. Superior Efficiency: The 3D void created by the spheres produces a powerful bactericidal effect, ensuring effective filtration. Moreover, the spheres serve as an excellent base for sponge growth, micro-fauna colonization, and coral frags. Versatile Application: Whether you have a sump, trickle filter, wet/dry filter, hang-on filter, or direct tank setup, the Bio-Filter Sphere can seamlessly integrate into any freshwater or seawater environment. Each 2kg box of Mantis Bio Filter Spheres contains approximately 80 spheres, providing ample surface area for bacterial colonies to thrive. Improve water quality and create a vibrant, thriving aquarium today with the Mantis Bio Filter Sphere 2kg.