Mattenfilter - SWISSTROPICALS

Mattenfilter dates back to the 1960s Germany. The filter was invented by aquarists near Hamburg, hence the name "Hamburger Mattenfilter" or "HMF".

8.7.3. Hamburg Matten Aquarium Filter

Swiss Tropicals matten filter, Pet Supplies, Homes & Other Pet Accessories on Carousell

as 03&04 2014

About biomedia plugging up

Quest for a most effiecient large tank setup

Talking Mattenfilters with Swiss Tropicals

New Corner Matten Filters

Choosing Aquarium Sponge Filters - Colorz Guppy Farm

hamburger matten filter

Foam tank divider question - Filtration, lighting and other equipment - The Shrimp Spot

Hamburg Matten Filter (HMF) project and upgrading shrimp tank (suggestions are welcomed!) : r/shrimptank