Filters for aquariums, fish ponds, swimming pools, swimming ponds or the like

摘要

The invention relates to a filter (1) for aquariums, fish ponds, swimming pools, swimming ponds or the like. The invention is characterized in that the filter (1) has a tangle (2) with cavities and projections and depressions (5) on its surface, wherein the tangle (2) consists in particular of geosynthetic material, and that in the cavities and depressions ( 5) of the random backing (2) filter substrates (3), preferably made of plastic fiber, and / or glass wool and / or rock wool, and / or zeolites, and / or foam foams, are embedded.