JBL CO₂/pH Permanent Test Set
Permanent test to determine the acidity/carbon dioxide content in freshwater aquariums

There are successor products for this item:
CO2-pH Permanent Test 2
  • Simple and reliable control of the water values of aquariums. Permanent direct measurement of the optimal pH value and CO2 content in freshwater aquariums.
  • Permanent test to monitor fertilisers: add reagent to permanent test device and attach with suction cups to the aquarium pane. Compare reagent colour with colour scale label and read value
  • Indication of pH value (6.4 – 7.8) and CO2 content
  • Online Laboratory: regular control for a healthy aquarium with natural conditions. 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 permanent test, CO2/pH Permanent Test, incl. permanent test, 2 reagents 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 aquariums with conditions close to nature
The right water values are dependent on the fish stock and the plants in the aquarium. Even if the water looks clear it can be contaminated. With bad values diseases or algae can appear in the aquarium. To maintain a healthy aquarium with conditions close to nature it is important to check and adapt the water values regularly.

For each water analysis JBL provides water tests in the form of quick tests or colour change tests. These determine a certain value or several values in one go. With these water tests you can recognise algae problems and negative nitrate, nitrite, potassium, magnesium values etc.

JBL Online Laboratory
Regular control for a healthy aquarium 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 CO2 content:
Freshwater aquarium (community aquarium): 15-35 mg/l
Lake Malawi/Lake Tanganyika aquarium: 4-10 mg/l
Plant aquarium with few fish (aquascaping): 20-35 mg/l
Marine aquarium: not measurable with this test
Pond: this test is not suitable for ponds

Details

JBL CO₂/pH Permanent Test Set

Art. no.:
2539200
EAN Code:
4014162253927
For:
9-12 mon
Volume packaging:
0.770 l
Gross weight:
104.000 g
Net weight:
60 g
Weight factor:
1000
Size(l/h/w):
42/175/105 mm

JBL CO₂/pH Permanent reagent

Art. no.:
2539300
EAN Code:
4014162253934
For:
Refill
Volume packaging:
0.450 l
Gross weight:
41.000 g
Net weight:
20 g
Weight factor:
1000
Size(l/h/w):
30/140/107 mm
FAQ
How do I properly open/close the CO2/pH permanent test diffuser?

To open the CO2/pH permanent test diffuser (angled model with black stand) just pull at the transparent cover with a sharp tug. The lid fits very tightly to prevent the diffuser liquid from leaking into the aquarium. To easily close the CO2/pH permanent test 2 diffuser (round model with white back) we recommend lubricating the seals with JBL SiliconeSpray. It is advisable to attach the lid in a tilted position and to press firmly against the bottom for 3-5 seconds to make sure that the rubber seal slips inside. Otherwise you can repeatedly press in “pumping strokes”. This ensures that the seal does not slip off and the diffuser liquid does not escape into the aquarium.
Both instructions apply to all batches manufactured until 10/2016. Subsequent models are provided with a modification which reduces the described effect if problems occur.

Despite CO2 fertilisation the indicator remains blue

No CO2 is generated when fertilising with so-called liquid carbon. Therefore the test is not able to indicate CO2, which means that the indicator always remains blue! If you add CO2 in gas form you need to increase the amount or the duration.

Bluish discolouration despite increased CO2 supply

Owing to a production fault a green colour change may not occur with the batches 1000 and 1001, despite increased CO2 supply.

Should you have one of the above mentioned batches, you can request a new refill set free of charge upon presentation of the sales receipt and a photo of the batch number. Please contact our customer service under: https://www.jbl.de/support/

Is the fluid of the JBL CO₂/pH-Permanent Test harmful to the tank inhabitants if some of it gets into the water ?

The fluid itself with the colour indicator is not harmful in any way with the high dilution in the tank and, in addition, it decomposes very quickly.

What is the shelf life of the JBL CO₂ Permanent Test ?

The JBL CO₂ permanent 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: 2413 (e.g.) = batch number
BBD: 09/13 (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

16.07.2017

Outline: Fertilisation in the Aquarium

The JBL plant care concept leads to vigorous and healthy growth even with the most demanding aquatic plants. JBL has all the components you need, whether it’s a fertiliser, a bottom substrate or a fully automatic CO2 fertiliser system.

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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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14.10.2016

From ProFlora CO2 system owner to tester, free of charge

Do you have a JBL ProFlora CO2 plant fertiliser system (u series/m series) with disposable or refillable cylinder? Then you can win an exclusive test model.

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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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31.08.2016

Why plants grow better with CO2

The discussion, whether aquariums also work without CO2, is as old as modern aquatics itself. One thing is clear: aquatic plants need carbon for their growth.

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01.08.2016

Water values for water plants in detail

If we transfer this Liebig’s Law of the Minimum to the aquatic field it quickly becomes clear how important balanced fertilisation is for plant aquariums.

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25.07.2016

Plant care: How can water tests help?

Ideally water looks crystal-clear, yet pollutants are often invisible. That’s why clear water might still be toxic.

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06.07.2016

The story of liquid CO2 fertilisation – The Reliability

In the fourth part of the series “The story of liquid CO2 fertilisation” we examine what we consider to be the most important aspect. The health of your animals but also of you, the aquarium owners is our number one priority.

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06.07.2016

The story of liquid CO2 fertilisation – The Reliability

In the fourth part of the series “The story of liquid CO2 fertilisation” we examine what we consider to be the most important aspect. The health of your animals but also of you, the aquarium owners is our number one priority.

Find out more

03.07.2016

The story of liquid CO2 fertilisation – The CO2 Content

In the third part of our series “The story of liquid CO2 fertilisation,” we look at the CO2 content of the “liquid CO2” products which are added to the aquarium.

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30.06.2016

The story of liquid CO2 fertilisation – The Effect

In the second part of the series “The story of liquid CO2 fertilisation” we examine how glutaraldehyde containing products work on plants.

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27.06.2016

The story of liquid CO2 fertilisation – The Substance

In the first part of the series “The story of liquid CO2 fertilisation” we look at the active substance of the products considered liquid CO2.

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24.06.2016

The story of liquid CO2 fertilisation

A lot of aquarists are talking about liquid CO2, which is said to be able to replace a conventional pressurized gas system or a bio-CO2 system.

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18.06.2016

Why is carbon dioxide (CO2) the most important plant nutrient in the aquarium?

Carbon dioxide is the nutritional basis for aquatic plants which is supplemented through micro and macronutrients and light. The balance between all these elements is necessary for thriving plant growth in the aquarium.

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01.04.2016

There’s more to fertilization than you’d think Part 2

Simply put, Liebig’s Law of the Minimum states that the growth of plants is limited by the scarcest resource. Adding a nutrient which already exists in abundance does not influence the growth.

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29.03.2016

Fertilization is not just fertilization Part 1

Unlike in natural waters, aquariums with fish mostly have a surplus of nutrients caused by feeding and the resulting fish excrement. Thus nitrates and phosphates in large (often too large!) quantities are available for the plants.

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26.11.2015

Oxygen Explosion in the Aquarium – The Right Fertilisation

Every evening my aquarium resembles a “whirlpool“ with a thousand little oxygen bubbles. This is the time I relax and wind down after a long day.

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Press

15.03.2011

JBL’s new CO₂/pH Permanent Test – one you can't do without!

Now, the new JBL Permanent CO₂/pH Test is able to indicate the carbon dioxide level of the water directly in mg/l. This ensures accurate information at all times, independently of the substances in the water influencing pH, such as ...

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Laboratories and calculators

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

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

  • JBL CO2-pH Permanent Test-Set
    Size:
    4 MByte
    Download
  • JBL Test-Set CO2 Permanent
    Size:
    2 MByte
    Download

Product tests & info

  • JBL Test-Set CO2 Permanent-CO2 Tabelle
    Size:
    1 MByte
    Download
  • JBL Test-Set CO2 Permanent - Erfahrungsbericht Aquarium-Site-de
    Size:
    2 MByte
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  • JBL Test-Set CO2 Permanent-Erfahrungsbericht
    Size:
    576 kByte
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safety instructions

  • JBL CO2-pH Permanent Test-Set Refill
    Size:
    30 kByte
    Download
  • JBL CO2-pH Permanent Test-Set
    Size:
    29 kByte
    Download
spare parts
accessories