Maxspect’s Nano-Tech BioSpheres are a durable dense arrangement of smaller spheres creating an ultra-high surface area media which reduces the volume of bio media actually required for efficient nutrient cycling in both fresh and saltwater aquariums and ponds. This unique ceramic media has a unique cross-cutting surface area that creates an ideal surface for a dense population of beneficial bacteria that removes ammonia and nitrites from your aquariums water. Some systems may also notice a decrease in nitrates. Suitable for sumps, reactors trickle filters, wet/dry filters, hang on the back filters or directly in the tank. The Maxspect Nano-Tech Bio-Media is developed using established technology borrowed from the sewage treatment industry with a proven record of nutrient removal of waste water. Instead of using mounds of costly live rock within the aquarium for biological surface we now have the option to regain more space and less weight in our aquariums and sumps.