Bio filter media High surfacearea 1600 M2/M3 is a new biological suspension carrier which modified polymetric material with the promoted addition of bio-enzyme,adaptable for all kinds of microoganism to grow and reproduction rapidly to dissolve organics in the water. It process excellences of large specific surface,being easy to multiply biofilm,unease to fall off,high denitrification,good hydrophile,high biological activity and so on. It widely used in the MBBR sewage treatment biofilter,aquaculture farms,Koi Filter Media,etc Available in 100litre/13 kg bags