Red Sea Max Bio Ceramic Filter Media For Aquariums

Highly porous ceramic filter media for use in the Red Sea Max aquarium rangeHigh quality ceramic rings with 420m2/l or 1,200 sq ft/gal of surface area for intensive biological filtrationPore structure enables both aerobic nitrification and anoxic denitrificationHeavy duty square bottomed 1mm mesh bag To be used when renewing biological filtration