Filter foams become indispensable in the aquarium hobby and pond filtering for decades, for example, at Hamburg mat filters, filter cartridges etc .. But also in the commercial wastewater treatment filter foams are used.
But in the aquarium external filter these are usually very difficult to use, since they do not fit in the filter baskets. And if they do, then only as an expensive dimension product from the manufacturer. Therefore, in general loose biological filter substrate is used, but has the big disadvantage tha it can usually only insufficiently cleaned. When the pores are closed by dirt, you just can not get out the dirt.
The Friscer 3D Bio filter cubes combine the advantages of both types of filter media. The filter foam cubes can be easily used as a bulk medium in each canister filter. and are easy to clean. Just squeeze them out in aquarium water a few times and they look like new. The non-degradable substances are washed out and the bacteria are retained.
The square shape results in a bulk fill a good water turbulence. The filter material is particular light and can therefore be easily used in large-volume filters such as pond filters, without these being burdened with a high filter material weight. The edge length of the filter cube is 25 mm. The pores are fine pores - PPI30.
And the best is, as always, in the end: It comes not with expensive packaging, Therefore, the Friscer 3D Bio Filter Cubes are particularly cheap!
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