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Juwel Hi-Flex Reflector 28W / 18W 590mm Price:£13.99£12.59Save: 10% off
They work well, fitting instruction could be better. I had to remove mine though as most fish hid at... [Read More]
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Eheim Biological Media
Biological Filter Media
The main task of biological filter media is to offer the best colonisation conditions for the bacteria cultures, so that after a short time a bacteria lawn develops. The bacteria feed on dirt particles of all kind and convert substances critical for the aquarium. After the first cleaning process by the mechanical filter media (e.g. Eheim Mech or Mechpro) the biological filtration is the most important. It provides for clear, healthy water and stabile water values. That’s why Eheim have invested a lot of research work into the development of biological filter media.
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