JBL Testlab ProScape
Test case for a comprehensive water analysis in planted aquariums

  • Simple and reliable monitoring of the water values in aquariums. Determines: pH value, carbonate hardness, CO2-direct, iron, magnesium freshwater, potassium, phosphate, silicate and nitrate
  • Add reagents to water samples, compare with colour charts, read values and look up on protocol sheet if and what action is recommended
  • Laboratory comparator system to compensate the inherent water colouring, analysis record sheet, instructions for trouble shooting
  • Child-proof reagent bottles, water-proof plastic case, refillable kit
  • Package contents: 1 test case for planted aquariums. Incl. 9 reagents, 6 glass vials, 2 syringes, 3 dosing spoons, thermometer, comparator block, 2 plastic cuvettes, colour charts, ball pen, analysis record sheets, instructions
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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
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. With the JBL Testlab ProScape you can determine the 9 most important water values in your plant aquarium.

Precise measurement of the following values:
pH test: acidity of the water from 6.0 to 7.6
CO2 Direct: immediate determination of main plant nutrient carbon dioxide (CO2)
KH test: pH stability of the water (carbonate hardness)
Fe test: iron value to control the fertilisation
NO3 test: monitors the plant nutrient nitrate (another possible reason for algae growth)
PO4 test sensitive: determines the phosphate content (another possible reason for algae growth)
SiO2 test: cause of diatoms
Mg test: plant nutrient magnesium
K test: plant nutrient potassium

You can analyse the water values you have measured in the JBL Online Laboratory free of charge and receive recommendations, or have the precise consumption of individual substances in your aquarium individually calculated with the JBL Dosage Calculator. No more following instructions and dosing approximately, in future you can follow the consumption of your aquarium plants and dose precisely!


JBL Testlab ProScape

Art. no.:
EAN Code:
9 test kits
Volume packaging:
10.320 l
Gross weight:
1300.000 g
Net weight:
1300 g
Weight factor:
85/318/382 mm
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.

Why are there no colour charts for the JBL GH test, the JBL KH test, the JBL calcium test Ca and the JBL magnesium test Mg?

The following tests from the test range are so-called titration tests: 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

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

What can I do when the measured value of a water test falls outside the scale?

If one of your measurements reaches the end of the colour chart scale you can multiply the scale, by diluting the following tests with distilled water (e.g. JBL Dest).

Here’s how to do it: dilute the sample with distilled water and carry out the test once more.

Her’s how in greater detail:
JBL GH test kit: Instead of 5 ml use 10 ml aquarium water. Now 1 drop is equivalent to 0.5 dGH.
JBL KH test kit: Instead of 5 ml use 10 ml aquarium water. Now 1 drop is equivalent to 0.5 dGH.

Note: when using 10 ml sample water the colour development is weaker with the first drops than with 5 ml sample water. Put the measuring container on a white underlay for a better readability.

JBL NH4/NH3 Ammonium/Ammonia test kit, JBL NO2 Nitrite test kit, JBL Fe Iron test kit and JBL Cu Copper test kit:
2.5 ml sample + 2.5 ml dist. water: result times 2
1 ml sample + 4 ml dist. water: result times 5
0.5 ml sample + 4.5 ml dist. water: result times 10

NO3 Nitrate test kit, JBL SiO2 Silicate test kit, JBL PO4 Phosphate sensitive test kit and JBL Mg Magnesium test kit freshwater:
5 ml sample + 5 ml dist. water: result X 2
2 ml sample + 8 ml dist. water: result X 5
1 ml sample + 9 ml dist. water: result X 10

JBL PO4 Phosphate test kit koi high range:
2.5 ml sample + 2.5 ml dist. water: result X 2
1 ml sample + 4 ml dist. water: result X 5

JBL K Kalium test kit:
7.5 ml sample + 7.5 ml dist. water: result X 2
3.75 ml sample + 12.25 ml dist. water: result X 5
1.5 ml sample + 14.5 ml dist. water: result X 10

JBL CO2 direct test kit, JBL Ca Calcium test kit and JBL Mg+Ca Magnesium+Calcium test kit:
not required

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:

pH 3-10

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.

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Blog – Opinions & Experiences


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Laboratories and calculators

ProScape dosage calculator

Here you can calculate the optimal supply for your aquarium with the JBL ProScape fertilizers. In order to supply the aquatic plants with exactly the right amount of fertilizer, we recommend dosing in two steps.

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

Setting up an aquarium

Here you will learn how to set up your aquarium. In the film we show you the step-by-step instructions. The brochure “Setting up an aquarium” contains all information you need when setting up a new aquarium.

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.


Product tests & info

  • JBL Testlab ProScape
    2 MByte
  • JBL Testlab ProScape oam Magazin 2014 11
    2 MByte

safety instructions

spare parts
Safety information
safety information in accordance with GHS
Hazard symbol
  • GHS02
  • GHS05
  • GHS08
  • GHS07
Risk phrase
H225: Highly flammable liquid and vapour.
H261: In contact with water releases flammable gases.
H302: Harmful if swallowed.
H314: Causes severe skin burns and eye damage.
H317: May cause an allergic skin reaction.
H341: Suspected of causing genetic defects.
H335: May cause respiratory irritation.
H412: Harmful to aquatic life with long lasting effects.
safety note
P101: If medical advice is needed, have product container or label at hand.
P501a: Dispose of contents/container in accordance with local/regional/national/international regulations.
P102: Keep out of reach of children.
P103: Read label before use.
P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P301+P310a: IF SWALLOWED: Immediately call a POISON CENTER/ doctor.
P303+P361+P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/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.
P405: Store locked up.
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