JBL ProAquaTest Easy 7-in-1 water test strips, aquarium and pond

Regular price $17.03
Regular price Sale price $17.03

A test strip dipped for 3 seconds gives you six values for your water in one minute: chlorine, pH, KH, GH, nitrite and nitrate. The CO2 is then worked out from a chart that cross-references the pH and the KH, and the tube of 50 strips covers nearly a year of weekly checks.

Ref. J2414400·Water test
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The summary

  • What it is: a tube of 50 test strips that measure six water parameters in a single dip.
  • What they measure: chlorine, pH from 6.4 to 9, KH, GH, nitrite and nitrate, plus CO2 via a chart.
  • How long it takes: 3 seconds in the water and a reading at 60 seconds, chlorine within the first few seconds.
  • How to choose: the test strip for routine monitoring, the drop test or the case for a precise figure and for ammonium.
  • In aquaponics: monitor nitrite during cycling, then KH and nitrate every week.
  • How they arrive: in a small parcel shipped within 48 hours, to your home.

Six water parameters read in one minute, and the CO2 from a chart

The JBL ProAquaTest Easy 7 in 1 test strips are used for routine checks of the water in an aquarium, a pond or an aquaponics system. Dipped for 3 seconds, each strip gives six values in 60 seconds: chlorine, pH, KH, GH, nitrite and nitrate. CO2 is worked out from a chart. The tube of 50 strips does not measure ammonium.

These test strips give you an overview of your water in one minute, with no bottles, no test tubes and no syringe. You swish a strip in the water for 2 to 3 seconds, let the excess drain off to the side, then compare its pads with the colour chart printed on the tube. Six values can be read in a single dip, on the water of an aquarium, a pond or an aquaponics system, as well as on tap or well water before a top-up.

🧪 Six tablets and a chart

Each pad reacts to one parameter. The chlorine pad shows tap water that still carries disinfectant, which must not go as it is onto fish or onto the bacteria in the filter. The pH reads from 6.4 to 9, the KH from 0 to 20 °dKH and the GH from under 1 to over 21 °dGH, which tells you how hard your water is and its buffering capacity. Nitrite reads from 0 to 10 mg/L and nitrate from 0 to 250 mg/L: these are the last two stages of the nitrogen cycle.

The seventh parameter requires no tablet. The chart supplied cross-references the pH and KH you have just read and works out the dissolved CO2 content from them, which is useful for judging whether aquatic plants have enough carbon. As this value is derived from the other two, its accuracy depends directly on how well you read the pH and KH, and it becomes meaningless in very poorly buffered water.

Read at 60 seconds, then close the tube

The test strip keeps reacting after the one-minute reading, and its colours change markedly beyond 70 seconds. A late reading therefore gives false values, and a strip can only be used once. Read the chlorine within the first few seconds, then the other pads at 60 seconds, in daylight. Close the tube as soon as you have taken your strip, because humidity in the air damages the remaining pads despite the desiccant it contains.

📏 Test strip or drop test

A test strip gives a range rather than a precise value. Nitrite is read here on a scale that goes up to 10 mg/L, whereas a nitrite NO2 water test in drops distinguishes levels from 0.025 mg/L, well before your fish are in danger. The strip also does not measure ammonium, the first toxic compound in a newly started tank, nor phosphates. It is therefore for routine checks, when you want to know within a minute whether a parameter has strayed outside its usual zone, whereas the drop test gives the figure that decides what you do next.

Complete the test strip with the ammonium test

If you are starting up an aquarium or an aquaponics system, add the ammonium NH4 water test drops to these test strips. Ammonium is the first compound to build up until the filter bacteria are established. With both, you can follow every stage of the nitrogen cycle, from ammonium to nitrate, without waiting for a fish to show signs of distress.

🌿 In aquaponics and in the pond

During the first weeks of an aquaponics system, the nitrite level rises and then falls as the bacteria become established, before nitrate builds up to feed your plants. A test strip every day or every 2 days tracks this curve without using up your reagents. Once the system is balanced, the weekly test mainly keeps an eye on KH, because nitrification produces acid and uses up the water's buffering capacity. KH then falls slowly, before the pH drops in turn. The guide to the nitrogen cycle in aquaponics describes each of these stages.

In the pond, the test strip is mainly useful in spring and before each top-up with fresh water. A coloured chlorine pad on the tap water shows that it needs treating before you fill. GH and KH then indicate the hardness of the top-up water, and nitrate shows whether the pond is producing more nitrogen than its plants consume. Any reading that departs from the usual can then be confirmed with the 6-in-1 pond water test kit, which adds ammonium and phosphates.

The pack contains 1 tube of 50 test strips, with the colour scale printed on the label, and the CO2 reading chart. At one test per week, a tube covers nearly a year of checks, or just over 7 weeks of daily monitoring during cycling. Store it closed, in a cool, dry place, rather than on the stand of an aquarium where the air stays humid.

Technical specifications

The parameters

Chlorine
DetectionA tablet to read from the first few seconds.
pH
From 6.4 to 9Not very reliable in reverse osmosis water or very soft rainwater.
KH
From 0 to 20 dKH
GH
From under 1 to over 21 °dGH
Nitrite NO2
From 0 to 10 mg/L
Nitrate NO3
From 0 to 250 mg/L

Use

Quench
2 to 3 secondsBy gently swirling the test strip in the water.
Draining
On the side, without wiping
Reading
At 60 secondsBeyond 70 seconds, the colours keep on changing.
CO2
By pH and KH chartCalculated value, skewed in very poorly buffered water.

The tube

Test strips
50, single-use
Storage
Closed, in a cool, dry placeA desiccant protects the strips as long as the tube stays closed.
Waters that can be tested
Aquarium, pond, tap, well
Reference
JBL 2414400EAN code 4014162241443

To budget for separately

Ammonium NH4
Ammonium test drops
Nitrite to the nearest digit
Nitrite test drops

8 further specifications are available in the detailed view.

In the box

  • 1 resealable tube of 50 test strips, colour chart on the label
  • 1 chart for reading the CO2 from the pH and KH

Parameters, ranges, soaking and reading times, storage and contents taken on 08/10/2026 from the manufacturer's documentation. Ranges of the drop tests read from the colour charts of the tests sold individually.

Manufacturer and product safety

Manufacturer
JBL GmbH & Co. KG
Postal address
Dieselstraße 3, 67141 Neuhofen, Allemagne
Website
www.jbl.de

Information provided under Regulation (EU) 2023/988 on general product safety.

The test strip, the drop test or the test kit?

Four ways to check your water, from the quickest to the most complete. What changes is the number of parameters read and the precision of the figure obtained.

Test strip, drops or test kit? The age of your setup, where your fish live and what you expect from the measurement are enough to decide.

Recommended
JBL ProAquaTest Easy 7-in-1 water test strips, aquarium and pondYour choice		Nitrite NO2 water test in dropsYour choice6-in-1 Aquarium Water Testing KitYour choice6-in-1 pond water analysis kitYour choice
What you're measuring
Parameters read (parameters)7 parameters1 parameters6 parameters6 parameters
Ammonium NH4NoNoYesYes
Nitrite NO2YesYesYesYes
Nitrate NO3YesNoYesNo
Phosphates PO4NoNoNoYes
Total hardness GHYesNoNoYes
The method
FormatTube of 50 test stripsDrop test, one parameterSet of 5 tests, aquariumBox of 6 tests, pond
Time per test1 minute for everything7 minutesUp to 15 minutes per testUp to 15 minutes per test
Reading the nitriteFrom 0 to 10 mg/LFrom 0.025 mg/LFrom 0.025 mg/LFrom 0.025 mg/L
Price$17.03$15.89$58.19$60.48
JBL ProAquaTest Easy 7-in-1 water test strips, aquarium and pondRecommended
What you're measuring
Parameters read (parameters)7 parameters
Ammonium NH4No
Nitrite NO2Yes
Nitrate NO3Yes
Phosphates PO4No
Total hardness GHYes
The method
FormatTube of 50 test strips
Time per test1 minute for everything
Reading the nitriteFrom 0 to 10 mg/L
Nitrite NO2 water test in drops
What you're measuring
Parameters read (parameters)1 parameters
Ammonium NH4No
Nitrite NO2Yes
Nitrate NO3No
Phosphates PO4No
Total hardness GHNo
The method
FormatDrop test, one parameter
Time per test7 minutes
Reading the nitriteFrom 0.025 mg/L
6-in-1 Aquarium Water Testing Kit
What you're measuring
Parameters read (parameters)6 parameters
Ammonium NH4Yes
Nitrite NO2Yes
Nitrate NO3Yes
Phosphates PO4No
Total hardness GHNo
The method
FormatSet of 5 tests, aquarium
Time per testUp to 15 minutes per test
Reading the nitriteFrom 0.025 mg/L
6-in-1 pond water analysis kit
What you're measuring
Parameters read (parameters)6 parameters
Ammonium NH4Yes
Nitrite NO2Yes
Nitrate NO3No
Phosphates PO4Yes
Total hardness GHYes
The method
FormatBox of 6 tests, pond
Time per testUp to 15 minutes per test
Reading the nitriteFrom 0.025 mg/L

Parameters, ranges and reading times taken on 08/10/2026 from the manufacturer's data sheets and from the four compared product pages: nitrite test, 6-in-1 test case for aquariums and 6-in-1 test case for ponds.

Estimate your
delivery time

Small parcel dispatched within 48 hours by Colissimo or Chronopost home delivery, your choice at checkout. The exact cost is shown in your basket, based on the total weight of your order. Once unsealed, this product cannot be returned under the right of withdrawal (article L221-28, 5° of the French Consumer Code), for reasons of hygiene and health protection.

Frequently asked questions

6 questions

6 key questions

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