JBL ProAquaTest NO2 Nitrite, Refill

Water tester

€ 7,99

(Price shown includes 20% VAT. - Excludes delivery costs)

Variant: Refill

Delivery by Tuesday, 18 June if you order by Monday at 00:00.

Only 3 items in stock

Free shipping to Austria from € 49,90.
More information regarding shipping & delivery

Features & Advantages

  • Easy and safe control of the water values of aquariums
  • Determination of nitrite content in freshwater and saltwater aquariums, as well as ponds
  • Laboratory comparator system for balancing water
  • Detailed information on water analysis on the JBL Homepage
  • Child-safe reagent bottles
  • Application: To check toxic nitrogen compounds resulting from a disturbed bacterial balance or when refitting

Item no.: JBL-2412400, Content: 1 set, EAN: 4014162241245


The JBL ProAqua Test NO2 is a water test for analysis of nitrite content in freshwater and seawater aquariums, as well as for ponds.

The degradation of all organic substances (feed and plant residues, excretions of fish) in the aquarium and pond is done via the so-called nitrogen cycle. Proteins are converted into ammonium and this into nitrite and harmless nitrate. Certain bacteria are responsible for this process. By measuring the individual intermediates ammonium, nitrite and nitrate, statements can be made about the "functioning" of the system. For example, medicines for curing fish diseases can damage the beneficial cleansing bacteria and thereby lead to an increase in ammonium and / or nitrite levels. As a rule, ammonium will not be measurable in a well-maintained aquarium with a powerful biological filter. Ammonium is a plant nutrient and non-toxic to fish in low concentrations. Depending on the pH value, however, ammonia (BH3) can form from the ammonium. For this reason, levels should always be checked with the ammonium measurement, a pH measurement. Nitrite, like ammonia, is a powerful fish poison. Depending on the sensitivity of the species, concentrations between 0.5 and 1mg / l (ppm) can be fatal. Marine fish and young fish are more sensitive than adults.

Recommended nitrite values:
Freshwater aquarium (community aquarium): 0-0.2 mg / l
Malawi Lake Tanganyika: 0-0.2 mg / l
Plant aquariums with few fish (aquascaping): 0-0.2 mg / l
Marine aquariums: 0-0.2 mg / l
Ponds: 0-0.2 mg / l

Our expert Oliver Knott recommends:
Inexplicable fish diseases or fish deaths are often the cause of a bacterial formation - a water test gives quick and safe information about it!

Brands (Manufacturers): JBL
Hazard and precautionary statements

Signal word: Warning

Precautionary statements:

  • P101 - If medical advice is needed, have product container or label at hand.
  • P102 - Keep out of reach of children.
  • P303+P361+P353 - IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water [or shower].
  • P305+P351+P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P501 - Dispose of contents/container according to local/national regulations.

Hazard statements:

  • H319 - Causes serious eye irritation
  • H226 - Flammable liquid and vapour

Customer Reviews

1 English review written for JBL ProAquaTest Nitrite

4 customer reviews in all languages

5,0 out of 5 stars
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4 stars
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19 reviews
1 customer review in English
4 customer reviews in all languages

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