Velda AquaTester Pro Fresh Water Testing Kit

Velda AquaTester Pro Fresh Water Testing Kit

VeldaSKU: VET401

Sale price£131.99
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Key Features

  • Includes 25 test strips for aquarium & pond fresh water testing
  • Digital test results sent straight to your phone or tablet
  • Measures and analyses 8 different levels including pH and Nitrates/Nitrites
  • Smart advice from Velda based on your waters diagnosis history
  • 2 Year manufacturers guarantee


The Velda AquaTesterPro measures the most important water values in just a few seconds. Suitable for both ponds and aquariums, the Velda AquaTester Pro comes with 25 fresh water testing strips that can measure and analyse 8 different levels in the water, helping you to understand and keep track of your water quality. A clear idea of water quality is important, particularly if you have fish and plants as the quality of your water can significantly impact growth and development.

Velda's advanced pond/aquarium test strips are used to determine the quality of your water, simply dip them into the water for 1 second, shake and leave to dry for 60 seconds before inserting it into the AquaTester Pro which will read off your test results - the digital test results are very accurate and they can be sent to your smartphone or tablet via Bluetooth. The AquaTester Pro app uses the values for a complete diagnosis and history of the water. Smart advice can then be sent from Velda to help maintain water quality and prevent any problems.

In order to use the smart testing features and have your results sent to your phone/tablet via Bluetooth please download the Velda app from either the Google Play store or the Apple store depending on your smart device.

Salt water testing strips will be available soon.


Test Strips Included: 25 x Fresh Water Indicator Strips

Product Size: 124 x 64 x 34 mm

Requires 3 x AAA batteries (not included)

2 Year Manufacturers Guarantee (See manufacturers website for details)

Velda AquaTester Pro measures:

pH - The pH is the acidity of the water and it is an important value to know when you use products for water and algae control. The right pH ensures the proper disinfection of your pool. Excessive pH causes calcium deposits and slows down plant growth in ponds and aquariums.

KH(CH) - The KH is the carbonate hardness expressed in degrees DH. It represents the capacity of the water to function as a buffer. When the KH value is too low, acidification of the water may result, slowing down the growth of oxygen-producing plants.

GH - The GH is the general hardness expressed in degrees DH. It represents the calcium and magnesium ions in the water. Excess levels of these minerals cause deposits and turbid water. When the GH value is too low, plant growth in the pond will slow down and acidification may result, especially in winter.

NO2 - The NO2 content is the nitrite level in the water. Nitrifying bacteria convert organic components into ammonium, and then nitrite and finally nitrate. Too much nitrite (NO2) in the water is harmful for fish. Replace the filter materials and refresh part of the water.

NO3 - Nitrates (NO3) enter the water in organic dirt from plants, garden fertiliser, urine or fish excrement. Water plants absorb nitrate but NO3 levels may become excessive when the nitrification process is disturbed, causing algal growth and green water.

TA - The TA is the alkalinity of the water and it determines the stability of the pH level. When the TA value is right, the pH will be less sensitive to the impact of the weather and dissolved substances in the water. Remedies to improve water quality will also be more effective. Fish do not respond well to strong pH fluctuations due resulting from over-low levels of total alkalinity.

CL2 - CL2 means the free chlorine in the water measured in mg/l. There should not be any CL2 in your pond/aquarium water because it destroys important bacteria.

CO2 - Aquatic water can tolerate some level of carbon dioxide but generally this should be below 20mg/L. Elevated CO2 levels in water can cause respiratory issues

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