BioCeraMax 1200 is an intensive filter material for effective biological filtration of aquarium water. The fine-pored material provides a huge surface area of approx. 1200 m/l for colonizing bacteria of the Nitrosomas and Nitrobacter species. Pollutants such as ammonium/ammonia and nitrite are quickly removed and the aquarium water becomes clear, clean and healthy. To maintain the optimal filter characteristics, the filter material should be rinsed regularly and replaced after approx. 6-12 months.AQUAEL BioCeraMax 1200+ biologically intensive filter medium+ for suse in fresh and marine water+ large surface area of 1200 m/l+ easy to usecontent sufficient for up to 200 l aquarium water+ long service life