Test case with the most important water tests for freshwater aquariums, incl. ammonium test

  • Monitors the water values in aquariums simply and reliably. Determines: pH value, carbonate hardness, nitrite, nitrate and ammonium/ammonia, as well as CO2 calculation using the table
  • Easy to use: add aquarium water to cuvette with syringe, add indicator and compare colour on colour scale, or count drops until colour changes in KH test
  • Comparator system takes the inherent water colouring into account. CO2-content is determined by pH value and KH value using the table
  • Childproof reagent bottles, waterproof plastic case, refill reagents separately available
  • Package contents: 1 test case for aquariums, 9 reagents, 3 glass vials, syringe, measuring spoon, comparator block, colour charts, report sheets, operating instructions
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Price: 63,07 €
Recommended retail price incl. VAT
You can find this item in your specialist and online shop
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. Bad values can cause diseases or algae in the aquarium. To maintain a healthy aquarium with conditions close to nature it is important to check and adapt the water values regularly. With JBL water tests you can determine all relevant water values quickly, easily and very precisely.

The following tests are included in the set:
pH test: acidity of the water from 3.0 to 10
To determine the CO2 content, it is sufficient to measure the pH and KH. These two values determine the CO2 content of the water, which can then be found in the enclosed table.
KH test: pH stability of the water (carbonate hardness)
NO2 test: determination of nitrogen compound nitrite, which is toxic for the fish
NO3-Test: determination of the nitrate content (reason for algae growth and plant nutrient)
Test NH4 / NH3: indication of non-toxic ammonium, determination of the toxic ammonia using table

The following tests are available as supplements:
pH test: acidity of the water from 6.0 to 7.6
pH test: acidity of the water from 7.4 to 9.0
O2 test: determination of the oxygen content
CO2 Direct test: determination of the current carbon dioxide content for thriving plant growth
Fe test: determination of the iron content to monitor the fertilisation
GH test: determination of general hardness
PO4 test: determination of the phosphate content (reason for algae growth and plant nutrient)
Cu Test: heavy metal deadly for invertebrates. Also important for adjusting the therapeutic dose of medications
SiO2 test: determination of the silicates (silicic acid) as cause for diatoms

Almost all test reagents are available as environmentally friendly refill packs!
You can analyse the water values you have measured in the JBL Online Laboratory free of charge and receive recommendations.



Art. no.:
EAN Code:
6 tests
Volume packaging:
3.13 l
Gross weight:
618 g
Net weight:
524 g
Weight factor:
Packaging dimensions (l/h/w):
52/226/266 mm


Animal species: Armored catfish, Arowana, Axolotl, Barbels, Bettas, Bichirs/reedfish, Blowfish, Catfish, Cichlids (South America), Clawed frogs, Clawed shrimps, Crayfish, Crustaceans, Danions, Discus, Dwarf crayfish, Dwarf shrimps, Flowerhorn, Gill maggots, Goldfish, Gouramis, Guppy, Juvenile fish, Killifish, Livebearers, Loaches, Mussels, Newts, Panchaxes, Rainbowfish, Snails, Spiny eels, Terrapins, Tetra, Veiltails, blood parrot cichlids, freshwater butterflyfish, turtle
Animal size: For all animal sizes
Animal age group: All aquarium fish
Material: Reagent(s) in plastic bottle(s) and/or glass bottle(s) + plastic and/or glass accessories. REFILL: reagent(s) without accessories.
Colour: white / transparent / black
Dosage: See instructions

Electronic label / illuminant

Mercury: No
Dimmable: No

Technical Data

Height:226 mm
Length:260 mm
Width:52 mm
Where can I find the record sheets for the documentation of my water analysis?

Have you lost your record sheets, used them all up, or need them in another language?
In the appendix of this FAQ you will find PDF files for printing them out in German, English and French.

Why are there different recommendations and values on the colour chart of the water test?

With the JBL PROAQUATEST drop tests you have a laboratory comparator system which compensates the inherent colouration of the water and at the same time enables non-chemists to carry out an accurate and safe water analysis. To ensure that water testing monitors the life of your fish and provides the greatest possible safety, you will find an evaluation adaptable to three different applications.

Above the different coloured measuring points are numbers, three symbols and a colour band for each.

The symbols stand for the following applications:
Fish = freshwater
Koi = garden pond
Starfish = marine water

The colour band tells you the meaning of the value determined in green (everything OK), yellow (attention) and red (need for action). In addition you will find numbers that reflect the value in mg/l for the respective colour field.

The first two (freshwater and pond) colour bands belong to the upper number row. Marine water belongs to the lower number row.

Why do the values differ?
Due to the high salt concentration in marine water, the colouring of the reaction is not as intense as in freshwater (which also includes pond). Consequently, the value for the same colouration is greater than in freshwater

Why do the recommendations differ?
Every habitat reacts differently to certain nutrient concentrations. In the garden pond, for example, constantly changing temperatures and light intensity can jeopardise the value more than in freshwater, where, unlike in the pond, these factors are constant and necessary additives are supplied. That’s why the recommendations are green for one area of application, yet yellow for the other.

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 website. The absolutely accurate colour reproduction that is required can only be achieved using a printer which can be re-calibrated before each printout. Most privately used printers are not accurate enough for this.

You will find the colour chart bundle as a spare part on the respective product page and in the spare parts shop under: https://www.jbl.de/en/products/detail/8732/jbl-proaquatest-assortiment-color-chart

Why are there no colour charts for GH. KH, Mg /Ca saltwater and CO2 direct?

The tests from the test range: JBL GH test, JBL KH test, JBL calcium test Ca and JBL magnesium test Mg, where the number of drops are counted until the colour changes and the counted value is multiplied by a value:

GH = number of drops = general hardness in °dH

KH = number of drops = carbonate hardness in °dH

CO2 = number of drops * 2 = CO2 in mg/l

Magnesium + calcium = number of drops * 120 = amount Ca + Mg in mg/l

Calcium = number of drops * 20 = amount Ca in mg/l

Magnesium = amount Ca+Mg from magnesium test - amount Ca in mg/l = magnesium in mg/l

The instructions point out that the comparator block should be used to compare the colours. Can this be done without the comparator block as well ? Or is there a factor from this comparison that is required for the measurement ?

The colour charts are intended to be used with the comparator block. In addition, when the comparator block is used with the blank water sample, this compensates the inherent water colour.

Therefore, if the comparator block is not used, there will most likely be deviations in the readings.

Show more FAQs ...
Blog (opinions & experiences)

JBL TV #53 How do you carry out water tests correctly and what are the most common mistakes?

Water tests for aquarium water can be very important, especially when there are problems.

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JBL TV #52 What kind of water do my aquarium fish need? What water values are ideal?

We want our aquarium fish to feel comfortable in the water. But what does ideal water mean for fish in the aquarium?

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JBL PROAQUATEST - simple yet laboratory standard - Part II

Today we’re continuing on the topic of water tests, with Part II of the blog post from 22.01.2023. Enjoy reading.

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JBL PROAQUATEST - simple yet laboratory standard - Part I

Aquarium water tests are similar to a blood test at the doctor's. Water tests allow you to take a look at the water composition.

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JBL TV #45: Optimum water values in the freshwater aquarium - 15 parameters explained simply

Biologist Heiko Blessin explains in an easy to follow way what the individual water values mean.

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JBL TV #38: Important for aquarists: pH, KH and CO2 - The correlation between them.

These 3 water values are the most important of all!

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JBL water tests - how to test correctly and reap the benefits

Lots of scientists & experts swear by the JBL water tests, but why?

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JBL TV #28 Part 2: Aquarium care is so easy! Weekly measures

What do you need to do every week? We explain everything that needs to be done once a week.

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JBL TV #27: Testing aquarium water - this is how it works

Water tests for aquariums: Aquarium water can be clear and still toxic to aquarium inhabitants!

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Pond care in summer - checklist and tips for algae-free fun

Looking out of the window this year, the popular summer season is presenting itself from another side. In this post, we would like to focus on the current situation, paying particular attention to the spring and autumn influences, which also play their part.

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JBL TV #13: What is carbonate hardness? It is the most important water value for your aquarium!

What is carbonate hardness? Why is carbonate hardness like life insurance for your aquarium? What is the difference between it and general hardness and how does carbonate hardness work in your aquarium?

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JBL TV #7: Why do fish die in high nitrite levels and what can be done about it?

How does the nitrogen cycle in the aquarium work? Why do nitrite values get too high and how can the value be reduced? Why adding salt is senseless.

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JBL TV #5: What is a pH value and why is it important for the aquarium?

Have you ever asked yourself exactly what makes up the logarithm of a pH value? Why does the pH value in our aquarium matter and how can we influence it?

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JBL TV #2: Why do algae grow in the aquarium and how can you stop it?

When algae take over the aquarium, there are always one or two possible causes. In this video, biologist Heiko Blessin explains very clearly and comprehensibly why algae grow at all and what we aquarium enthusiasts can do about it. The topic of algae in the aquarium has never been explained in a simpler and more understandable way!

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Getting rid of diatoms - no problem at all

If a brown coating covers the substrate of your aquarium and looks unattractive, let’s hope it is diatoms! The alternative would be smear algae - and they are not as easy to get rid of as diatoms.

Find out more

Misunderstandings – typical beginner mistakes

Based on our own experience in customer service and the many messages and questions we receive, we have put together the typical mistakes beginners may make. The experienced aquarist might well smile, but if they are honest, these are mistakes we all made at the start, aren’t they?

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Time For A Change - Pros And Cons

Think back to your childhood. Your bedroom was a small area for you to let your imagination run free. And unsurprisingly you felt like re-decorating and rearranging it at least every three weeks.

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How often do you need to test your pond or aquarium water?

Granted, nobody really enjoys testing water. It’s time-consuming and sometimes you’re not sure which colour on the chart your water result matches. But water testing really can be lifesaving – at least for your fish!

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Why is the KH higher than the GH?

Many aquarium owners think that the general hardness represents the total of all minerals and the carbonate hardness only a part of it. Then how can the carbonate hardness sometimes be higher than the total of minerals?

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Testing Water in the Jungle

Our 15 expeditions have taught us something new: In natural waters nitrogens (ammonium/ammonia, nitrite and nitrate) and phosphates are ALWAYS scarce and below the limit of detection. Only when humans have an influence on the natural water, can nitrogens and phosphates be found.

Find out more

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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Laboratory Comparator System to Compensate the Intrinsic Colour of the Water

Instead of comparing the colour change of the water on a colour scale, a second measuring glass with the aquarium water is put on the colour field of the colour chart.

Find out more

Carbonate Hardness – The Life Insurance for the Aquarium

The carbonate hardness (not the general hardness!) contains components which stabilize the pH level. They prevent extreme pH levels and ensure the aquarium functions properly.

Find out more

Care products - The best solutions for your aquarium

With the right products, aquarium care is not only easy, but can also be a lot of fun! The formulas that make up JBL products are based on intensive research and, especially with care products, their effects are not always immediately visible, yet in the medium and long-term they’ll result in a beautiful aquarium and healthy fish.

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The JBL Calculators – Calculated Success

The three most important factors for your plant aquariums are the nutrient balance, the substrate and the lighting.

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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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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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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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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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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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JBL has the largest range of water tests worldwide!

With 24 different water analysis tests for freshwater and marine aquariums and ponds as well as 8 different test cases, JBL offers the widest range of water tests worldwide. The second place is shared by two American manufacturers with 15 individual tests each, but with only 0 and 2 test cases respectively.

Find out more


JBL Water Tests Now Even Better

Scientists, aquarium owners, pond enthusiasts, and especially those who need reliable, accurate water tests, use JBL water tests. Over the years, the JBL development team has been collecting and is now ready to implement your suggestions for improvements.

Find out more
Reference guide (Themeworld)

Reducing problematic water values

How to lower critical water values.


Recognising and treating fish and invertebrate diseases

Deficiency symptoms

Here’s how to prevent deficiency symptoms in fish and plants

Algae control

Here’s how to combat algae successfully and lastingly.

Testing water

Testing water – the most important step to understanding your aquarium. Why is water testing necessary?

Fish breeding in aquariums

Would you also like to breed your fish? What do you have to consider when breeding?

Fish species

Which fish species suit your aquarium? What demands do the fish species have?

Invertebrate species

What invertebrate animals are suitable for your aquarium? What demands do invertebrates have? What do you need to consider for their care?

Planning and stock

Which fish are compatible? What do you need to consider when selecting fish?

Water tests

What water tests are available? How do water tests work? How do you test properly?

Water values

Which water tests are important? How can you achieve perfect water values?


Which aquarium plants are best? What’s the best way to plant them?

CO2 plant fertilisation

How important is CO2 plant fertilisation? Why do your plants need additional CO2? How does a CO2 system work?

Biotope (habitat) aquarium types

A real piece of the Amazon or, with the Congo, a piece of the heart of Africa. A habitat (biotope) aquarium is a challenge. Can you emulate nature?

Aquascaping aquarium type JBL Dreamscape®

Mountains, valleys, meadows and fish! Create your dreamlike landscape under water with the Dreamscape® aquarium

Jungle aquarium type JBL Rio Pantanal®

A bit of jungle river in your living room. Lively underwater action! No problem with the JBL Rio Pantanal® aquarium

Goldfish aquarium type JBL Goldfish Paradise®

Lively goldfish in the aquarium enhance any room perfectly! Invite some new flatmates into your home with this goldfish aquarium.

Rocky reef aquarium type JBL Malawi Rocks®

The fish of Lake Malawi are as colourful as the fish in the coral reefs. This aquarium brings a bit of freshwater reef into your living room

The right filter material

What sort of filter material to choose? What filter material solves which problems? How can you clean it? Where does it need to be positioned in the filter?

Daily care

How much daily or weekly care is involved? What are the basic maintenance measures for your aquarium?


Additional product information and downloads

  • JBL PROAQUATEST COMBISET Plus NH4Tabelle Wasseranalyse V03
  • JBL ProAquaTest Combi Set Plus NH4

safety instructions

spare parts
Safety information
JBL ProAquaTest Combi Set Plus NH4 - safety information in accordance with GHS
Signal word
Hazard symbol
  • GHS02
  • GHS05
  • GHS07
  • GHS08
  • GHS09
Risk phrase
EUH031: Contact with acids liberates toxic gas.
H225: Highly flammable liquid and vapour.
H314: Causes severe skin burns and eye damage.
H317: May cause an allergic skin reaction.
H318: Causes serious eye damage.
H336: May cause drowsiness or dizziness.
H341: Suspected of causing genetic defects.
H400: Very toxic to aquatic life.
H411: Toxic to aquatic life with long lasting effects.
safety note
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.
P501a: Dispose of contents/container in accordance with local regulations.
Hazard-determining component
121-57-3: sulphanilic acid
1310-73-2: sodium hydroxide
541-69-5: m-phenylenediamine dihydrochloride
64-19-7: Acetic acid
67-63-0: propan-2-ol
7647-01-0/1: hydrogen chloride
7681-52-9/1: sodium hypochlorite, solution
Customer reviews


Overall rating: 5.0
20 public review(s) for this product.

1 Review

Callum Jenvey-Vallender

Great product, simple and easy to use. Worth having to any aquartist

19 more reviews in other languages

19 Reviews in other languages

S. Klöcker - German

Einmal im Monat nutze ich den Koffer für den genauen Test. Für den wöchentlichen Test nutze ich die Streifen von JBL. Hat mich noch nie enttäuscht.

G.E.P.P. - French

Un bon kit pour commencer et remplacer les tests en bandelettes.

La malette est solide, les tests sont en sécurités.

J. Le lous - French

really complete test case. easy to use and well explained. super reliable test. I use it all the time. very very good product

S. Tejera Galindo - Spanish

El maletin viene muy bien ordenado y es muy práctico a la hora de medir los parametros del agua.

T. Fischer - German

Nutze den Koffer seit Jahren und vertraue nur den jbl Tropfen Tests!

Mir kommt kein anderer ins Haus!

T. Ralha - Portuguese

Project @paraísopleco

This is the perfect match for many fishrooms. It brings together the main tests for a quick and accurate evaluation of aquarium water and new water in any water change.

Very simple to use and very easy to store (as aquarists know, there is never enough space in every fishroom).

Discus.forest - German

Nutze die Tests bereits seit mehreren Jahren und bin super zufrieden damit. Ein Muss für jeden Aquarianer.

skalar1987 - German

Habe heute diesen Koffer das erst mal benutzt. Ich bin sehr begeistert. Kinderleicht und alle Werte waren im grünen Bereich✔️

_aqua4you_ - German

Ich war anfangs etwas überfordert mit den ganzen Präparaten und Behältern. Allerdings habe ich mich schnell eingefunden und jeder Test ist mit Bildern auf der Rückseite der Anzeigetafel beschrieben. Super genau und ein muss für jeden Aquarianer, der seine Werte exakt im Blick haben möchte.

pani_akwarystka - German

Jeśli chcesz mieć pewność że Twoje zwierzęta mają właściwe warunki , to właśnie te testy to umożliwiają. Testy od JBL jako jedyne są tak dokładne i badając swoją wodę regularnie możesz w porę zareagować w razie problemów w swoim akwarium. Profesjonalny Akwarystka zawsze bada wodę w swoim akwarium. Dla mnie Testy JBL są najlepsze

malawireef - French

Sehr gut!

eisenfisch - German

Ich habe in meiner Aquaristik Laufbahn schon sehr viele Tröpfchentests ausprobiert aber ich muss ganz ehrlich sagen, keiner war je besser als die von JBL.

Die Tröpfchentests sollten einfach bei keinem Aquarianer fehlen. Bei Problemen kann man schnell die Ursache eingrenzen und reagieren.

Auch bei mir als "Alter Hase" sind die Tröpfchentests nicht wegzudenken!

tropheus_italia - Italian

Ottima valigetta completa di tutti i test che mi servono per il mio acquario li ho trovati semplici e facili da usare li consiglio a tutti!

Ragnarshrimps - French

Cette valise est parfaite, tout réunis au même endroit et les tests sont d'une précision remarquable. Je recommande vivement

a_jak_akwarium - Polish

The perfect product. The suitcase contains all the necessary tests. The most important feature of these tests is their high accuracy. Clear instructions, tests are performed without any problems, quickly.

fishrimps9 - Spanish

muy comodo para llevar el control de los parametros del acuario antes de cada cambio de agua

cedric_scape - French

Malette indispensable ! facile à utiliser et résultat précis

A. van de Sanden - Dutch

I've been using individual tests. Now decided to buy my first combiset (plus NH4).

I think they need to remove the pH and CO2 tests and put in the PO4 and GH tests. Otherwise the set is pretty complete for the most important tests to be done. If JBL makes the suggested change then they will receive 5 stars. Now 1/3 of the set will be unused by me.

I know many other Aquarians will agree with me.

malawiaddiction - German

Mir kommt kein andere Tröpchentest mehr ins Hause, ich habe andere Produkte gehabt die immer andere Werte anzeigten.

Nicht so bei dem von JBL ich kenne keinen anderen der so genau ist und werde auch in Zukunft nur auf den Tröpchentest von JBL vertrauen der selbst die winzigsten werde wie Nitrit genau anzeigt auf die zweite Nach Komma stelle.

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