Dymax Bio-Glass is made from natural silicate at a high temperature, suitable for both freshwater, and saltwater aquarium and pond.

Its stable chemical characteristics of micro pores size (from 60 to 300um) make it ideal for colonization and growth of micro-organisms.

The multi-porous structure provides a 6 to 8 times larger surface than other ordinary bio-rings.

Its highly penetrative porous structure enables the aerobic nitrifying bacteria's nitrification and anaerobic denitrifying bacteria's denitrification.

Functioning with physical filtration materials can prolong its life of durability.

It is an ideal biological filtration material.