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Connection to an existing aquarium
If a Sulphur-Nitratereductor
is connected to an existing aquarium with a rather high nitrate level,
the inflow of aquarium water should not immediately be started. If after 8 - 10 days, the nitrite has
dissapeared from the reductor - a residual concentration of nitrate is harmless - the water flow can
be switched on.
After some time, a slimy bacterial biomass is formed in the Sulphur-Nitratereductor
.
This a normal
process. A high bacteria population ensures a high removal rate of nitrate.
7.
Maintenance
1.
Control the flow rate: The flow rate through the filter has to be checked regularly. The optimum
is approx. 0.5 to 1 l/hr. This has to be re-adjusted from time to time.
2.
Re-circulation pump: The re-circulation pump has to be controlled regularly for clogging. The
pump housing has to be opened and the magnet with the needle wheel removed. Both is
cleaned under fresh water and mounted again.
3.
Cleaning: If the bacterial biomass has increased after some years, the Bactoballs can be
removed, cleaned with aquarium water and filled in again.
4.
Renewal of the sulphur beads and the Hydrocarbonate: Both materials are used and should be
refilled when necessary.
5.
From time to time measurement of nitrite and nitrate concentrations in the outlet of the
Sulphur-Nitratereductor.
8.
Options
With a redox potential control, the function of the Sulphur-Nitratereductor can be optimised and
the reliability can be increased. The optimal working point of the Sulphur-Nitratereductor can be
determined by a measurement of the redox potential.
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