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Seite 11
Basics– Filter media
The delivered filter media represents only the basic filter material needed for
your aquarium.
Please inform yourself what filter materials are suitable for your aquarium be-
cause these can differ depending on the fish and plants living in your aquarium.
Please use for only one stage of the filter one filter wadding (one piece). This
should be regularly renewed because dirty fleece/wadding can quickly lead to a
decrease in filter efficiency.
Aquarium external filters consist of several layers. The water (that is sucked) is
filtered in several stages.
The lowest layer (stage) consists of bio balls. These balls offer bacteria a large
settling area and retain coarse dirt. The bio balls should be covered by a layer
with filter fleece/wadding. Above it a layer with ceramic rings should follow. These
also create optimal conditions for bacteria settling.
Additionally you can place here another layer of activated carbon (in a netting
bag or partly also as filter mat available) and this will form the last filter layer.
This should not be permanent employed, but it should be used after a medication
treatment and for turbid water with suspended particles.
When you purchase a new aquarium filter or after it has been fully cleaned the
useful bacteria must be enriched again. For this reason there are special bacteria
cultures that can be supplied in the aquarium to facilitate their settlement.
It basically applies from bottom to top:
1. Stage: mechanical/ partial biological filtering
2. Stage: biological filtering
3. Stage: chemical filtering (activated carbon, peat, phosphate etc.)
If necessary the aquarium filter can be extended to 4 stages by adding a me-
chanical or biological filter stage.
