What is 10 0 10

JBL pH 3.0-10.0 test
Quick test for determining the acid content in ponds and freshwater / seawater aquariums

  • Simple and safe control of the water values ​​in ponds and aquariums. Determination of the optimal pH value for fresh and sea water
  • Quick test: fill the plastic cuvette with sample water, add reagent, read the value of the sample on the color card
  • Duration of use: For a new set-up: 1 week - daily, then weekly
  • Online laboratory: Regular checks for a healthy aquarium / pond with conditions close to nature. JBL offers water tests in the form of quick tests or color change tests for every water analysis. Test water for healthy, clear water
  • Scope of delivery: 1 refill pack for rapid test, content for approx. 50 measurements, 1 reagent pH 3.0-10.0
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Healthy aquarium / healthy pond with conditions close to nature
The correct water values ​​in the aquarium / pond depend on the fish stock and the plants present. Even if the water looks clear, it can be polluted. If the values ​​are poor, diseases or algae can form in the aquarium / pond. For a healthy aquarium / pond with conditions close to nature, regular control and adjustment of the water values ​​is important.

For every water analysis, JBL offers water tests in the form of quick tests or color change tests. These determine a certain value or several values ​​at the same time. With these water tests, algae problems can be recognized and negative nitrate, nitrite, potassium, magnesium values ​​etc. can be determined.

Why test?
Keeping a suitable pH value as constant as possible is an important prerequisite for the well-being of the aquarium and pond inhabitants and the thriving of aquatic plants. In addition, many substances dissolved in water are subject to changes due to the pH value. In particular, fluctuations in the pH value should be avoided.

JBL online laboratory
Regular checks for a healthy aquarium / pond with conditions close to nature. Enter your water values ​​in the JBL online laboratory and have a thorough analysis of your values ​​carried out in seconds.

Recommended pH values:
Freshwater aquarium (community aquarium): 6.5-7.5
Malawi Lake Tanganyika Aquarium: 7.8-9.2
Plant aquariums with few fish (aquascaping): 6.0-7.0
Saltwater aquariums: 7.9-8.5
Ponds: 7.5-8.5

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JBL pH 3.0-10.0 test set

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JBL pH 3.0-10.0 reagent

Where can I find the log sheets for documenting my water analysis?

Have you lost your protocol sheets, have you already filled them all out diligently or do you need them on sheets in another language?
With the following links you can quickly and easily print out your new protocol sheets with recommendations for the individual parameters at home and document the water analyzes.

German: https://www.jbl.de/?lang=de&mod=files&func=show&id=11164
English: https://www.jbl.de/?lang=en&mod=files&func=show&id=11164
French: https://www.jbl.de/?lang=fr&mod=files&func=show&id=11164
Dutch: https://www.jbl.de/?lang=nl&mod=files&func=show&id=11164

Does the pH test 3 - 10 also measure reliably with weakly buffered solutions?

The weakly buffered solutions in the aquaristic sense include osmosis water and water with a KH below 1 ° dKH. Such test methods cannot deliver reliable measurement results in such water.

I lost my color card. Can I download the color chart for the test?

The color cards are not offered for download on the JBL homepage, as a color-calibrated printer is required for a reliable, color-fast printout, which is rarely the case in private households.

You can find the color card booklet as a spare part on the respective product page and in the spare parts shop at: https://www.jbl.de/de/produkte/detail/8732/jbl-proaquatest-sortiment-farbkarten

Which of the three scales on the color cards of the water tests symbolizes sea water, fresh water and garden pond?

Koi carp = garden pond
Angelfish = sea water
Discus = fresh water

Which scale is applicable to my aquarium? On my test there are two or three control fields with fish and recommendations.

Again and again we get questions about the symbols on the water tests. The hobby areas cannot be clearly assigned to the scales for assessment. To illustrate the hobby areas on the color cards, three symbols are used:

Discus = fresh water
Kaiser = sea water
Koi = garden pond

Below you will find a list that assigns the scale for assessing the measured values ​​to the hobby areas and explains the symbols. For this purpose, the scales are described from top to bottom.

NO3: sea water, fresh water, garden pond
pH 6.0 - 7.6: fresh water, garden ponds
pH 7.4 - 9.0: sea 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 assessing the measured values, as differentiation is no longer necessary:

pH 3-10

Show more FAQs ...
How long can the JBL pH-Test 3-10 be kept?

The JBL pH-Test 3-10 has a shelf life of 4 years in the originally closed bottle.

The following is printed on the underside of the packaging:

CH / B: 2559 (e.g.) = batch number
MIN: 01.15 (e.g.) = best before date (month / year)

Please note that the best-before date does not apply to opened reagents. The shelf life is reduced by exposure to atmospheric oxygen.

On the bottle of the JBL pH Test 3.0-10.9 there are 3 drops in the instructions, but 4 drops.

4 drops are correct. 3 drops also work, the pH value is displayed correctly, but the color development is less pronounced.

For the JBL pH Test 3-10, the instructions say adding 4 drops. 3 x drops are shown on the reagent bottle. Which details are valid?

Both, 3 drops are sufficient. With 4 drops the color development becomes a little stronger and it can make reading easier.

Will my water tests still work even though they have been open for 9 months?

It is basically the case that opened test reagents have a shorter shelf life than originally closed ones. How much the shelf life is reduced depends largely on the handling and storage conditions of the reagents. It is therefore very possible that after 9 months a reagent will no longer display correctly. But more information is needed to assess this.

Blog (opinions & experiences)

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

Have you ever wondered what exactly is behind the logarithm of the pH value? Why is the pH value important for our aquarium and how can we influence it?

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Misunderstandings - Typical Beginner Mistakes

We have compiled the typical beginner mistakes from our experience in customer service and the many letters and questions. It might make the experienced aquarist smile, but let's be honest, you certainly made one of the mistakes when you started out, right?

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Time to redecorate - useful or dangerous?

Go back to your childhood. The child's room provided a limited space and the child's creative thoughts are seething in the child's head. It is not surprising that every three weeks at the latest the desire to redecorate and rearrange arose.

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How often should you test the water in the pond or aquarium?

Okay, hardly anyone likes to test water. It takes time and sometimes you are unsure whether it is this or that color when comparing the color chart. But testing water can really save lives - at least for your fish!

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Changing the water in the pond makes sense!

However, changing the water also has other important functions: It removes problematic substances such as nitrates and phosphates from my pond, adds minerals, as I said, and also reduces a color cast in the water.

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Testing water in the jungle

But now we have also learned something in 15 expeditions: In natural waters, nitrogen (ammonium / ammonia, nitrite and nitrate) and phosphates are ALWAYS in short supply and below the detection limit. Nitrogen and phosphates can only be found when people influence the natural waters.

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Overview of fertilization in the aquarium

The JBL plant care concept leads to strong and healthy growth even with the most demanding aquatic plants. JBL offers all components for correct plant care, from fertilizers and soil substrates to fully automatic CO2 fertilizer systems.

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Carbonate hardness - the life insurance for the aquarium

The carbonate hardness (not the total hardness!) Contains components that stabilize the pH value. It prevents extreme pH values ​​and thus ensures a really functioning aquarium.

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Terrarium vets find out about JBL water tests

At the 46th working conference of DGHT AG ARK (German Society for Herpetology, Working Group for Amphibians and Reptile Diseases) from 11-13 November 2016 in Gera, 160 veterinarians met to discuss topics ranging from surgery to magnetic resonance imaging in turtles.

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JBL color card booklet can now be ordered

Active water testers need new color cards for their water tests from time to time. JBL is now offering the complete book of color cards, which contains brief instructions and color tables for all water tests, for subsequent purchase. The special thing about the JBL color cards ...

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JBL film shows acid fall

Since many aquarists and pond owners do not really understand how important the carbonate hardness is and how its buffering effect on the pH value works, JBL has put a short short film with subtitles on the JBL homepage and on YouTube.

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JBL and aquarists protect the environment

Almost every aquarist tests water and regularly needs refills for their water tests. At JBL, he can get refill reagents for every test, thus protecting his wallet and the environment.

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Pond laboratory / computer

The pond laboratory, which is unique in the world, helps you specifically with algae and cloudiness problems in your pond.

Water analysis online laboratory

Enter your water values ​​here and have a thorough analysis of your values ​​carried out in seconds. You enter your water values ​​- we analyze! Here you have the option of entering your measured water values ​​directly into the JBL online laboratory, which analyzes and explains your value and suggests remedial measures.

Sea water

There is hardly a problem for which there is no solution! The biggest problem is actually just figuring out what is causing the problem.

Lower problematic water values

We tell you how you can lower critical water values.


Identify and treat fish and invertebrate diseases

Deficiency symptoms

This is how you prevent deficiency symptoms in fish and plants

Algae control

How to combat algae successfully and in the long term

Sea water care

What maintenance measures does a saltwater aquarium need?

Test water

Testing water - the most important step in understanding your aquarium. Why should you test water?

Daily care

What care do you have to take on a daily or weekly basis? What are the elementary maintenance measures for your aquarium?

Aquarium fish farming

Would you like to breed your fish too? What must be considered when breeding?

Fish species

Which fish species are suitable for your aquarium? What are the requirements of the fish species?

Invertebrate species

Which invertebrates are suitable for your aquarium? What are the requirements of invertebrates? What do you have to consider when it comes to care


How are fish caught correctly and without stress? How should fish be transported and used?

Planning and stocking

Which fish go well together? What do you have to pay attention to when choosing?

Water tests

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

Water values

Which water values ​​are important? How can you achieve optimal water values?


Which aquarium plants are ideally suited? How do you best plant?

CO2 plant fertilization

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

The right filter material

How should filter material be made? Which filter material solves which problems? How is it cleaned? Where should it be placed in the filter?

The marine aquarium

Bring your coral reef vacation into your living room! A saltwater aquarium is the most exciting form of aquaristics

Biotope (habitat) aquarium types

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

Aquascaping aquarium type JBL Dreamscape®

Mountains, valleys, meadows and fish! Build your dream landscape underwater in the Dreamscape® Aquarium

Jungle aquarium type JBL Rio Pantanal®

A piece of jungle river in your living room. Lively activity under water! No problem with the JBL Rio Pantanal® Aquarium

Rock reef aquarium type JBL Malawi Rocks®

The fish of Lake Malawi are as colorful as the fish of the coral reefs. Bring a piece of freshwater reef into your living room with this aquarium

Goldfish aquarium type JBL Goldfish Paradise®

Lively goldfish in the aquarium are a perfect addition to any room! Bring new roommates into your home with a goldfish aquarium

Test water

Water can look crystal clear and still be a deadly poison such as B. contain arsenic. Unfortunately, we cannot see how the pond water is doing.


Rainwater makes your pond water softer and softer. What does this mean for your pond?

Water treatment

How do you treat well and tap water so that it is suitable for your pond?

Fish care

How do you protect new fish? What should be considered when caring for fish?

The water tests - all parameters

You don't need to do all of the tests all of the time, just as a doctor won't necessarily look in your ears if you have knee pain. In the following table you will find brief information that a water test could help you with.