UK
Iron (Fe):
Special features:
The JBL Iron Test Set Fe is designed for the measurement and routine control of the iron
content in freshwater and marine aquariums and garden ponds within the range 0.05-1.5 mg/
litre (ppm). Using the compensation method developed specially by JBL, precise and reliable
results can be obtained even in moderately discoloured aquarium water, e.g. caused by peat
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lters and disease treatment.
Why test?
Besides an adequate supply of CO2, aquatic vegetation needs iron and trace elements. Since
healthy aquatic plants constantly consume iron and other trace elements, which only keep in
the water for a limited period even when bonded to so-called chelating agents (usually found
in modern fertilizers, e.g. in JBL Ferropol), the iron content must be monitored regularly with
the JBL Iron Test Set Fe and replenish, if necessary. A concentration of 0.1-0.2 mg/litre (ppm)
is normally adequate for good plant growth. A standard dose of JBL Ferropol corresponds to
about 0.2 mg/litre (ppm). The JBL Iron Test Set Fe can also be used to measure the iron content
in tap water (normally iron-free) or in natural waters as well as in garden ponds. Levels between
0.002 and 0.05 mg/l are recommended in marine aquariums.
Remedy:
Iron content too low: fertilize with JBL Ferropol and Ferropol 24
Iron content too high: change part of the water or
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lter with JBL Carbomec activ.
Instructions:
1. Repeatedly rinse both test jars with the water to be tested.
2. Use the enclosed syringe to
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ll each of the test jars with 5 ml of sample water.
3. Add 5 drops of Fe-reagent to one of the test jars and mix by agitating. Allow to settle for 5
minutes.
4. Place both test jars into the comparator block: the jar with added reagent into the smooth end
of the comparator block, the jar with the untreated test water (blank sample) into the notched
end of the comparator block.
5. Move the comparator block together with the jars from side to side over the colour chart,
with the notched side of the block facing the scale, until the colour of the sample with added
reagent matches the colour of the blank sample.
6. Read the iron content in the notch of the comparator.
Please observe the safety notice on the reagent bottle!
Note:
If you decide to use the JBL Ammonium test Set at the same time, make sure not to mix up the
test jars of both sets. Traces of the ammonium test left inside the test jar may lead to incorrect
high readings in the iron test.
See the JBL brochure “What, Why, How” No.2 for more details on the signi
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cance of iron and
other trace elements for a thriving underwater aquarium garden.
Our tip for the ecologically-minded users:
All reagents for the JBL Test Sets are also available in convenient and reasonably priced re
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ll
packs.
Carbonate hardness (KH):
Features
The JBL KH Test Set is an easy to use quick-test for determining the carbonate hardness or the
antacid capacity of saltwater and freshwater.
Why test?
Depending on origin and consistency of the subsoil, water may contain varying quantities of