filter masses by EHEIM are made from the finest raw materials, are permanently tested and are free from harmful substances.
Crystal clear, healthy water and long service life.
Even the best internal or external filter is ineffective if it is not equipped with filter media.
This involves different materials with different functions.
They keep dirt and floating particles back, ensure the biological conversion of pollutants, remove harmful substances or water from the water Cause chemical change.
Depending on the size and occupation of the aquarium, type of filter and water quality, appropriate filter media are used and combined with each other.
The correct structure is crucial for water quality.