For use in freshwater, marine aquariums and ponds. Carbon will remove medications as well as toxins from your water, remember to remove carbon if you are medicating.
 
Carbon is recomended to be used after medicating and if toxins and/or pollutants are present. Carbon will also give aquarium water a final "polish" and increase clarity.  
 
Dosage: We recommend that two table spoons of carbon (30ml) should be used per 50 litres of aquarium/pond water. Change carbon after 3-4 weeks, or when aquarium water discolours.