Porpoise TB-1 Ceramic Biofilter Towers 1 Litre bio media for use in Freshwater and Saltwater Aquariums

Porpoise Ceramic Biofilter Towers 1 LitreFor use in Freshwater and Saltwater AquariumsHighly Efficient:The rate or porosity is varies among 35%-60% and the pores in the material are even.  The smallest pore can be as small as 0.1um.  It possesses both physical and bio-chemical filtering functions.Absolutely safe:The product is clean, poison-free, odourless and insoluble in water.Environmental-healthy:The product can be used a long time without causing any change in the shape of the application and can be reused after being fired over flames.Wide-range applications:It can be used in various kinds of filtering systems.  It is acid-proof, alkali-resistant and salt tolerant.Good bio-chemical function:Its numerous pores can remove the P.S.B. from aquarium and pond water, deposit nitrifying bacteria as well as anti-nitrifying bacteria and supply them a suitable environment of growing and working.  The anaerobic layer inside the filter material can promote the growth of anti-nitrifying bacteria.  On the surface of the filter material there is an enriched oxygen layer which is suitable for the growth of nitrifying bacteria, thus the two layers form a perfect microorganic water treatment system.