Eheim Substrat Quartz Gravel
Eheim Substrat Synthetic quartz gravel is a high performance biological filter material
Its surface structure offers the important cleaning bacteria excellent colonization conditions. With an adhesion surface of 450 m2 per liter .
After the mechanical treatment of the water by Eheim Mech, the water is biologically filtered by one or more layers of Eheim Substrat.
This substrate is very easy to clean and can be reused several times . Biological filtration is based on the natural removal of contaminants through aerobic bacteria, which are capable of transforming proteins and their decomposition products. It is a product of the Eheim brand , a leading German company worldwide in the aquarium industry, a guarantee of excellent quality and durability.