JBL CO2 Direct Test Set
Quick test to determine the carbon dioxide content in freshwater aquariums

  • Simple and reliable monitoring of the aquarium water values. Determines the optimal carbon dioxide content for freshwater aquariums
  • Application: fill plastic cuvette with sample water, add reagent drop by drop until stable colour change to pink. Number of drops x 2 = CO2 content in mg/l
  • To use in case of badly or non-growing plants and fish mortality: once a week
  • Online Laboratory: regular control for a healthy aquarium 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, CO2 Direct Test Set. Incl. 2 reagents, plastic cuvette and colour chart. Refill reagents avaiable separately
For more information
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.

Why test?
Carbon dioxide is the most important plant nutrient. The optimal value lies between 15-35 mg/l. This level is harmless for fish and ensures thriving plant growth.

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.

Details

JBL CO₂ Direct Test Set

Art. no.:
2541600
EAN Code:
4014162254160
Content:
Volume packaging:
0.800 l
Gross weight:
115.000 g
Net weight:
86 g
Weight factor:
1000
Size(l/h/w):
43/175/105 mm

JBL CO₂ Direct Reagent

Art. no.:
2541700
EAN Code:
4014162254177
Content:
refill
Volume packaging:
0.000 l
Gross weight:
56.000 g
Net weight:
30 g
Weight factor:
1000
Size(l/h/w):
30/140/107 mm
FAQ
When do I stop adding the reagent?

As soon as the water shows a clearly visible pink coloration which remains constant stop adding the reagent. If the colouration stays for 60 seconds the “end” has been reached. Adding further reagent does not result in the deeper pink colouration of the colour chart.

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. 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.

You will find the colour chart bundle as spare part on the respective product page and in the spare parts shop.

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

Do my water tests still work although they have been open for nine months?

Basically a sealed test keeps longer than an open one. How much the shelf life is reduced depends crucially on the handling and the storage conditions of the reagents. It may happen that a reagent in a test that has been open for 9 months doesn’t indicate correctly any more. However, additional information is needed to answer this question properly.

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Instructions

safety instructions

  • JBL CO2 Direct Test-Set
    Size:
    95 kByte
    Download
  • JBL CO2 Direct Test-Set Refill
    Size:
    95 kByte
    Download
spare parts
accessories
Safety information
safety information in accordance with GHS
Hazard symbol
  • GHS02
  • GHS05
Risk phrase
H225: Highly flammable liquid and vapour.
H314: Causes severe skin burns and eye damage.
safety note
P103: Read label before use.
P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
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.
P310a: Immediately call a POISON CENTER/doctor.
P101: If medical advice is needed, have product container or label at hand.
P403+P235: Store in a well-ventilated place. Keep cool.
P102: Keep out of reach of children.
Signal word
Danger