EHEIM Carbon Filter for Clear Aquarium Water - Especially Suitable for New Tank Setups EHEIM Carbon is particularly suitable for water purification during the aquarium setup phase. Chlorine from tap water and other chemicals that may enter the aquarium during installation are safely absorbed. EHEIM Carbon should be used for a short period (about 4 weeks) in the layer setup after mechanical filter media (such as EHEIM MECH or MECHpro) and biological filter media (such as EHEIM SUBSTRATpro) in the included mesh bag. - Binds chlorine and other chemicals - Used, for example, during setup or after medication treatment - Used for a short period (about 4 weeks) - Suitable only for freshwater Tip: Use absorbent filter media only for a few weeks, as harmful substances are only adhered to and may be released back into the water after a period. They should be changed regularly at least. Absorbent filtration is usually only necessary during aquarium setup or after medication treatment. Mechanical: No Biological: No Absorbent: Yes Chemical: No Mesh Bag: No Freshwater: Yes Marine Water: No Width: 166 mm Height: 217 mm Depth: 85 mm