Function Description; Intended Use - Oase ProfiClear Premium Gebrauchsanleitung

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2.2

Function description

The ProfiClear Premium Moving Bed Module is designed for biological filtering of pond water. Hel-X
biomedia are used as filter elements.
Hel-X biomedia ensure the effective break-down of nutrients and contaminants in the water. Over the
course of time, the surface of the biomedia is colonised by bacteria responsible for nitrification and
denitrification. They clean the water before it leaves the container. The fluidized bed process (action of
the water flow and oxygen supply) and the bypass technology ensure optimum motion of the Hel-X
biomedia even at high flowthrough rates, and removal of dead biomass.
50 l of Hel-X biomedia are able to break down the nutrients from approx. 300 g fish food per day,
given optimum conditions. If required, this can be increased to 75 l, i.e. 450 g/day.
The development of the biology in the filter takes several days. It can be accelerated by adding BioKick
CWS.
Biokick CWS contains millions of active micro-organisms. They start cleaning the water immediately
and act as starter bacteria. The biology in the filter is fully developed within only a few days.
Nitrification is the process by which ammonia/ammonium and nitrite are removed from the water by
special bacteria. These substances can build up in the water, for example as a result of fish food and
fish excrement. Ammonia is particularly toxic for fish.
Nitrification takes place in two steps. In the first step, the bacteria convert the ammonia/ammonium into
nitrite. In the second step, other bacteria convert this nitrite into nitrate, which although non-toxic,
promotes the growth of algae. Both steps use oxygen that is taken from the water.
Denitrification is the process by which nitrate is broken down to nitrite and then gaseous nitrogen. The
bacteria use the nitrate nitrogen as a source of oxygen and convert it into atmospheric nitrogen.
Atmospheric nitrogen cannot be used by algae and aquatic plants. Denitrification only takes place to a
very small extent in an environment with a high oxygen content.
OASE recommends: If you are giving your fish large amounts of food, ensure that there are sufficient
aquatic plants or change the water regularly.
2.3

Intended use

ProfiClear Premium Moving Bed Modul, in the following termed "unit", and all other parts from the
delivery scope may be used exclusively as follows:
For cleaning garden ponds.
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Operation under observance of the technical data.
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The following restrictions apply to the unit:
Only operate with water at a water temperature of min. +4 °C to max. +35 °C.
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Never use the unit to convey fluids other than water.
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Do not use for commercial or industrial purposes.
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Do not use in conjunction with chemicals, foodstuff, easily flammable or explosive substances.
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18172-07-13_GA_ProfiClear Premiu20 20 25.07.2013 12:58:54