EN
Sulphur Nitrate Filter NF 509 - NF 1020
Regular feeding of fishes and invertebrates can lead to a dangerous concentration of nitrate. It is beyond
dispute that biological removal of nitrate makes a lot of sense in the marine as well as in the fresh water
aquarium.
Biological nitrate removal
Anaerobic bacteria can reduce nitrate into other substances. This can only happen under anaerobic water
conditions (free of oxygen). To ensure an effective biological nitrate removal certain pre-conditions must be
fulfilled
-
Anaerobic water conditions in the nitrate filter through a ‘drop by drop’ water supply.
-
Measurable nitrate content in the aquarium water.
-
Aerobic filtration system must be well established
Starting up
-
Before connecting the
sulphur
nitrate filter
to the aquarium the filter should
be thoroughly rinsed to remove any dusty particles.
-
Connect the inlet of the micro filter to a pump or bypass of the aquarium. The outlet
should
not
be led directly into the aquarium.
-
Adjust the water flow initially to app. 1 drop/second and allow the filter to run like this for at least
2-3 weeks, checking the flow frequently.
During the „running in“ period the nitrite (NO2) and nitrate (NO3) level can increase
measured at the
outlet of the filter. This is not dangerous as long as the aerobic filter system and the aquarium is mature.
Also the pH level can be very low. It is therefore recommended to run the outlet into a container filled with
a limestone media as used in calcium reactors.
Important
-
The „running in“ period for the
Sulphur
nitrate filter
is relatively long, it can take up to 8
weeks or even longer!
-
Measure the nitrite (NO2) and nitrate (NO3) levels on a regular basis at the filter outlet. If both,
nitrite and nitrate levels are 0 mg, increase the flow slightly (for instance 2 drops per second) and
again measure NO2/NO3 at the outlet.
-
The increase of the water flow should be done in stages in small amounts at the time in order to
establish the maximum possible flow for the system.
-
Do not increase the flow too much, since this might „tip“ the filter and cause undesirable reac
tions.
If this happens, the filter has to be restarted with a flow of 1 drop/second.
technical data
dimensions (l/w/h) ca.
sulphur
suitable for aquaria up to
NF 509
180 x 140 x 500 mm
2,5 kilos
900 ltr.
NF 511
220 x 160 x 500 mm
3,4 kilos
1400 ltr.
NF 616
300 x 250 x 600 mm
7,0 kilos
2500 ltr.
NF 1016
300 x 250 x 1000 mm
17,0 kilos
7000 ltr.
NF 1020
350 x 300 x 1000 mm
27,0 kilos
10000 ltr.
Содержание NF 1016
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