© by WilTec Wildanger Technik GmbH Seite 15
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The leak point is then the lowest point of the filter cover/lid and appears typically at the lateral
clamping points that connect the cover lid with the filter tank/canister.
The remedy is here as simple as the failure itself. You have to rinse and check the O-rings.
Make sure that the spots where the O-rings have to be inserted and positioned are free of
dirt. On these particular spots algae formation can appear and impair or damage the O-rings'
sealing if no regularly cleaning is carried out. This problem can also appear in case of a new
installing because of sand, for instance.
Please allocate sufficient time for rinsing and cleaning; if this is not done carefully and
thoroughly, it can happen that the aquarium canister filter still leaks after the O-ring sealings
have been cleaned.
If, despite a thorough cleaning the water leakage at the above-mentioned spots still persists,
you must check the O-ring seating inside the adaptor. This requires opening the inlet/outlet
adapter. Please contact our customer service.
Basics- Filter media
The delivered filter media represents only the basic filter material needed foryour 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. Above it a layer with ceramic rings should
follow. On the top level, we recommend a filter sponge covered with a filter wadding. (For
example - please adjust)
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 one filter layer. This should not be
permanent employed, but it should be used after a medication treatment and for turbid water
with suspended particles. (Not included) 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 mechanical or
biological filter stage.
