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JBL PROAQUATEST CO2 Direct
Quick test to determine the carbon dioxide content (main nutrient for plants) in freshwater aquariums

Product information sheet Instructions
  • Simple and reliable monitoring of the aquarium water values. Determines the optimal carbon dioxide content for freshwater aquariums
  • Procedure: fill plastic cuvette with sample water, add reagent drop by drop until pink colour remains stable. Number of drops x 2 = CO2 content in mg/l
  • To use during periods of poor or no plant growth and fish mortality: once a week
  • You will find detailed information and troubleshooting tips about water analysis on the JBL website in Essentials/Aquarium
  • Package contents: 1 CO2 quick test incl. 2 reagents, plastic cuvette and colour chart. Reagent refill separately available
Price: 17,77 €
Recommended retail price incl. VAT
You can find this item in your specialist and online shop
Dealer close to you
Price: 9,77 €
Recommended retail price incl. VAT
You can find this item in your specialist and online shop
Dealer close to you
Instructions

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Details

JBL PROAQUATEST CO2 Direct

Art. no.:
2414000
EAN Code:
4014162241405
For:
Set
Volume packaging:
0.8 l
Gross weight:
134 g
Net weight:
77 g
Weight factor:
0
Packaging dimensions (l/h/w):
43/175/106 mm

Properties

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, Tetra, Veiltails, blood parrot cichlids, freshwater butterflyfish
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:175 mm
Length:105 mm
Width:43 mm

JBL PROAQUATEST CO2 Direct REFILL

Art. no.:
2414100
EAN Code:
4014162241412
For:
Refill
Volume packaging:
0.57 l
Gross weight:
69 g
Net weight:
31 g
Weight factor:
0
Packaging dimensions (l/h/w):
30/175/110 mm

Properties

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, Tetra, Veiltails, blood parrot cichlids, freshwater butterflyfish
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:64 mm
Length:48 mm
Width:24 mm
FAQ
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.

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.

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

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 later 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.

This works in detail as follows:
GH test: Instead of 5 ml use 10 ml aquarium water. Now 1 drop is equivalent to 0.5 dGH.
KH test: 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.

NH4/NH3 ammonium/ammonia, NO2 nitrite, Fe iron and Cu copper:
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, SiO2 silicate, PO4 phosphate sensitive and Mg magnesium 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

PO4 phosphate 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

K potassium:
7.5 ml sample + 7.5 ml dist. water: result x 2
3 ml sample + 12 ml dist. water: result x 5
1.5 ml sample + 13.5 ml dist. water: result x 10

K potassium in marine water:
1. Fill 10 ml of sample water with distilled water to 300 ml.
2. Follow the instructions for fresh water.
3. Multiply the test result by a factor of 30.

CO2 direct, Ca calcium and Mg+Ca magnesium+calcium: 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.

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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Have you got the right CO2 and fertiliser content in your aquarium?

It’s important to check the CO2 and fertiliser in your aquarium to make sure your plants grow the way you want them to.

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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 #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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JBL TV #1: Why do plants need a CO2 system in the aquarium?

In this video, biologist Heiko Blessin explains why plants need CO2 at all, why aquarium plants have different requirements and how to connect a JBL CO2 system. CO2 fertilisation for aquariums has never been explained more simply or more understandably!

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Measuring the CO2 Content With Drop Test (VIDEO)

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Plant Fertilisation with Optimised Consumption

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Care products - The best solutions for your aquarium

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The JBL Calculators – Calculated Success

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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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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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Why plants grow better with CO2

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Plant care: How can water tests help?

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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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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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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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The story of liquid CO2 fertilisation – The Substance

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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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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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You ask, we answer: What’s the best way to fertilise an aquascape?

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Press
14.08.2020

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.

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12.03.2019

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.

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Reference guide (Themeworld)

The water tests – all parameters

You don't always have to do all the tests, any more than your doctor will look in your ears when your knee hurts. In the following table you will find brief information about where a water test can help.

Algae species

Do you have green water or thread algae? We’ll give you long term solutions for algae problems

Reducing problematic water values

How to lower critical water values.

Diseases

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?

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?

Plants

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

Fish care

How do you protect your new fish? What to remember when caring for fish?

Plant species

Which plant species suit your aquarium? What demands do the individual species have?

Fertilising

Why do aquarium plants need to be fertilised?

CO2

Why is CO2 so important for plant care? What benefits does CO2 fertilisation provide?

Daily care

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

Plant care

What maintenance measures do your aquarium plants need?

Plant growth

Are your aquarium plants growing as well you want? Here’s how to achieve perfect plant growth
Download

Instructions

Additional product information and downloads

spare parts

component set for water tests 

PROAQUATEST range colour charts 
Customer reviews

Reviews

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

0 Reviews

4 more reviews in other languages

4 Reviews in other languages

marcs.jungle - German
2023-12-08T18:00:24Z

Funktioniert einwandfrei!

dr_scaper - Polish
2023-06-06T22:35:24Z

Best test ever

skalar1987 - German
2022-05-16T17:46:51Z

Einfache Anwendung. Funktioniert wie die üblichen Tröpfchentest aus dem Hause JBL. Sehr genau.

Thomas_aquascapingcz - Czech
2021-09-07T17:19:57Z

Využívám tento produkt k občasnému ujištění že v akváriu je vše v pořádku

JBL CO2 Direct 1 - safety information in accordance with GHS

Signal word: Danger

Hazard symbol

  • GHS02
  • GHS05
  • GHS07

Risk phrase

H225: Highly flammable liquid and vapour.
H314: Causes severe skin burns and eye damage.
H318: Causes serious eye damage.
H319: Causes serious eye irritation.

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.

JBL CO2 Direct 2 - safety information in accordance with GHS

Signal word: Danger

Hazard symbol

  • GHS05

Risk phrase

H314: Causes severe skin burns and eye damage.
H318: Causes serious eye damage.

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.
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specialist dealers near you
Sustainability at JBL
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