JBL Oxygen Test O₂
Quick test to determine the oxygen content in freshwater/marine water aquariums and in ponds

  • Easy and reliable monitoring of the water values of aquariums and ponds. Determines the ideal oxygen content in freshwater and seawater
  • Quick test for monitoring the aeration: fill glass vial with sample water, add reagents, read sample value off colour chart
  • When to use: once a week in newly set up aquariums
  • Online Laboratory: regular control for a healthy aquarium/pond with conditions close to nature. JBL has water tests in the form of quick tests or colour change tests for every water analysis. Testing aquarium water for healthy, clear water
  • Package contents: 1 quick test, Oxygen Test O2. Contents for approx. 50 measurements. Incl. 2 reagents, glass vial with screw cap and colour chart. Refill reagents available separately
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Recommended retail price incl. VAT
Available from your specialist dealer.
Dealer close to you
You can find this article at your specialist shop and online
Recommended retail price incl. VAT
Available from your specialist dealer.
Dealer close to you
You can find this article at your specialist shop and online
Product information

Healthy aquarium/healthy pond with conditions close to nature
The right water values are dependent on the fish stock and the plants in the aquarium/pond. Even if the water looks clear it can be contaminated. With bad values diseases or algae can appear in the aquarium/pond. To maintain a healthy aquarium/pond with conditions close to nature it is important to check and adapt the water values regularly.

Why test?
The well-being of aquarium and pond dwellers and the growth of aquatic plants depend to a large extent on the O2 level being kept as constant as possible. Oxygen is the “elixir of life” for all animal organisms. All animals in the aquarium and pond need oxygen to breathe. But the “invisible helpers” in the aquarium and pond, the bacteria that break down pollutants, also depend on sufficient supplies of oxygen in order to be able to carry out their useful activities. In aquariums and ponds with little or no planting and in marine aquariums the oxygen content always needs to be kept at an adequate balance using technical equipment.
The water absorbs oxygen through the water surface. The more the surface is moving the more oxygen is absorbed. In case of dying algae and during the use of many medications the oxygen content in the water needs to be increased by aeration.

JBL Online Laboratory
Regular control for a healthy aquarium/pond with conditions close to nature. Enter your water values into the JBL Online Laboratory and get an in-depth analysis of your values within seconds.

Recommended oxygen content:
Freshwater aquarium (community aquarium): 5-8 mg/l
Lake Malawi/Lake Tanganyika aquarium: 5-8 mg/l
Plant aquarium with few fish (aquascaping): 5-10 mg/l
Marine aquarium: 5-10 mg/l
Pond: 5-10 mg/l.

Details

JBL Oxygen Test Kit O₂

Art. no.:
2540600
EAN Code:
4014162254061
For:
50 tests
Volume packaging:
0.800 l
Gross weight:
95.000 g
Net weight:
66 g
Weight factor:
1000
Size(l/h/w):
43/175/106 mm

JBL Oxygen Reagent O₂

Art. no.:
2540700
EAN Code:
4014162254078
For:
Refill
Volume packaging:
0.450 l
Gross weight:
51.000 g
Net weight:
20 g
Weight factor:
1000
Size(l/h/w):
30/140/107 mm
FAQ
I have lost my colour chart. Can I download the colour chart for the test?

The colour cards are not available for download on the JBL homepage. For this a guaranteed true colour print is required, and you need a printer which can be re-calibrated before each printout. Most privately used printers are not accurate enough for this.

We will happily send you a new colour chart bundle with all individual colour charts for the JBL tests free of charge. Please forward the JBL customer service your address.

Which scale applies for my aquarium? My test has two or three control fields with fish and recommendations.

We repeatedly receive questions regarding the symbols on the water test. The hobby areas cannot be clearly assigned to the scales for analysis. There are three symbols to make the hobby areas on the colour charts clear:

Discus = fresh water
Emperor = salt water
Koi = garden pond

In the following, you will find a list which assigns the scale for analysing the results from measurements in the hobby area and explains the symbols: The scales are described from the top to the bottom here.

NO3: salt water, fresh water, garden pond
pH 6.0 – 7.6: fresh water, garden ponds
pH 7.4 – 9.0: salt water, fresh water, garden pond
Fe: fresh water, garden pond

The following JBL tests have a uniform scale for all 2 or 3 hobby areas for analysis of the results from the measurements, as differentiation is no longer necessary:

SiO2
Cu
NH4
NO2
PO4
pH 3-10
O2

Which of the three scales on the colour cards symbolize of the water tests saltwater, freshwater and garden pond ?

koi carp = garden pond
angel fish = saltwater
discus = freshwater

Is it possible that the JBL oxygen test O2 flocculates slightly after the addition of the 2nd reagent?

Yes, this is possible and normal (formation of manganese dioxide). Please shake the test vessel thoroughly before referring to the colour scale.

What is the shelf life of the JBL Oxygen Test ?

The JBL oxygen test has a shelf life of 3 years in the original sealed bottle.

The following is printed on the bottom of the packaging:

CH/B: 2166 (e.g.) = batch number
BBD: 03/13 (e.g.) = best-before date (month/year)

Please note that the best-before date does not apply for opened reagents. Exposure to atmospheric oxygen decreases the shelf life.

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Blog – Opinions & Experiences

20.04.2017

Pflegemittel - Die besten Lösungen für Ihr Aquarium

Mit den richtigen Produkten ist die Aquarienpflege nicht nur einfach, sondern kann auch viel Spaß machen! Die auf intensiver Forschung basierenden Zusammensetzungen der JBL Produkte sind zwar gerade bei Pflegemitteln nicht immer auf den ersten Blick erkennbar, aber auf jeden Fall mittel- und langfristig am schönen Aquarium und gesunden Fischen abzulesen.

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22.10.2016

Inaccurate water tests – or did I do something wrong after all?

In the aquarium scene we often hear people talking about “accurate” and “inaccurate” tests. But mostly they mean a rougher or finer scaling of the output values.

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28.09.2016

Testing water – here’s how

The water in your aquarium is outstandingly significant because it is a life-giving element for fish and plants.

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18.09.2016

Keeping an eye on the most important water values

Professional water analysis sounds very expensive. But the professional water testing in your aquarium or pond at home also works on a high level and above all it is simple and inexpensive.

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21.09.2015

Treating fish diseases before they arise

Even if your fish have fallen ill, it is not too late. Nonetheless we want to save the fish from getting ill. About 90 % of all fish diseases are the result of a weakening of the immune system.

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19.08.2015

Your pond’s health in summer

The care of your garden pond depends on the season. In spring you have other jobs than in autumn. But what needs doing in summer?

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Laboratories and calculators

Pond laboratory / calculator

This worldwide unique pond laboratory gives you dedicated support to combat problems with algae and cloudiness in your pond.

Water Analysis Online Laboratory

Enter your water parameters and get an in-depth analysis of your values in a matter of seconds. You enter your water values – and we analyse! Here you have the opportunity to enter the measured water values directly into the JBL Online Laboratory. This will analyse your values and explain and submit corrective measures.
Worth reading

Pond care

The different seasons (at least in Central Europe) require different care measures. Even in countries where there are no cold winters with minus degrees, factors like rainy seasons, dry seasons or perhaps a summer with particularly high temperatures all play a decisive role for the garden pond.

Algae problems

Why are algae a problem? What algae species can be found in the pond and how can you combat them effectively and for the long-term?

Aquarium problems

Are you faced with algae problems or don’t your aquarium plants grow well? Is the water cloudy or are your fish ill? Don’t your water parameters correspond to your expectations? Our team of experts has thoroughly analysed the problems that occur in the aquatic field and offers you solutions which really work.
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Instructions

safety instructions

  • JBL O2 Sauerstoff Test
    Size:
    92 kByte
    Download
  • JBL O2 Sauerstoff Test Refill
    Size:
    92 kByte
    Download
spare parts
accessories
Safety information
safety information in accordance with GHS
Hazard symbol
  • GHS05
Risk phrase
H314: Causes severe skin burns and eye damage.
EUH032: Contact with acids liberates very toxic gas.
safety note
P102: Keep out of reach of children.
P103: Read label before use.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P310: Immediately call a POISON CENTER/doctor.
P101: If medical advice is needed, have product container or label at hand.
Signal word
Danger