In the year 2002 i started my personal website www.nico-manicone.de in German. One article was about the Hamburger Mattenfilter, a fishkeeping filter quite popular in Germany. The web server logs displayed that a lot of non German speakers accessed this article. Therefore i decided to create an English translation which you are reading now. ;-)
What is the meaning of Hamburger Mattenfilter? Hamburg is a city in Germany and Matten is mat in Englisch. So a translation is mat filter invented in the city Hamburg.
A filter type which has become more and more popular in Germany is the Hamburger Mattenfilter. This kind of filter is a biological slow filter. Dirt is thus mineralized and removed by water change. Central part of the Mattenfilter is a plastic mat. The mat in the displayed aquarium has a 12 l volume. Compare this value with a commercial filter volume!
The tank depicted in this article is used as quarantine-/ upbringing aquarium. Especially for young fishes it's not possible to use a powerful internal filter, because they would end in the filter. On the other hand young fishes should get as much feed as possible, which requires a powerful filter. Therefore for this tank a Mattenfilter is used.