Maxspect Nano-Tech Bio-Plug are inert and composed of 100% small ceramic beads.

Optimum porous structure
Stimulates coral growth
Also serves as an organic medium

The structure of Nano-Tech Bio Media is essentially made up of numerous small beads tightly packed together so that there is only one point of contact between each of the beads, allowing water to pass very easily between them. This technology has long been used in the wastewater treatment industry. It is known as a biological aerated filter (W-BAF). However, in wastewater treatment, these beads are not shaped like spheres, blocks or plugs. They are used in the same way as the sand bed technique. But this is not very practical for aquarium use. So we decided to use our patented technology to manufacture spheres, blocks and plugs with these pearls, which are much easier to use for us aquarists.