EHEIM Substrat 1240g 2l Biological Filter Media 2509101

Biological filter media.The main task of the biological filter material is to provide the best conditions for bacterial cultures to settle, so that a bacterial lawn develops after a short time. The bacteria feed on all kinds of dirt particles and convert the substances that are critical for the aquarium.After the first cleaning using mechanical filter media (e.g. EHEIM MECH or MECHpro), biological filtration is the most important thing. It ensures clear, healthy water and stable water values. That is why we have invested a lot of research into the development of biological filter media.EHEIM SUBSTRAT:- Standard bio-filter medium with a large settlement area for bacterial cultures and high performance- SUBSTRAT can be built up in one or more layers. It is a highly porous filter material made of sintered quartz. The surface structure offers the important cleaning bacteria excellent settlement conditions. The adhesive surface is 450 m² per liter.- EHEIM SUBSTRAT is washable and can be used multiple times.Features:- Standard bio-filter medium- Highly porous material made of sintered quartz- Excellent conditions for bacterial cultures- Can be used multiple times (rinse carefully to clean)Specifications:- Biological: Yes- Freshwater: Yes- Width: 166 mm- Height: 217 mm- Depth: 85 mm