Elos Aqua Test Kit - pH Freshwater

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This item has been discontinued.

Elos USA


The ph-value or acid value indicates how acidic or alkaline the water is. It is the measure of the concentration of the acidic or alkaline components in a hydrous solution. Pure water will react neutral and has a pH value of 7.0. If the acidic components are predominant, the pH value will drop below 7.0. If the basic components are predominate, the pH value will rise above 7.0.

In freshwater aquariums, when not dedicated to Malawi cichlids etc., the optimum pH value is between 6.2 and 7.2 which are found in natural water. Many organisms are very sensitivity to large variations of the pH-value, so large swings should be avoided.

ELOS AquaTest pHD, as well as all the other colorimetric test kit of this line, grant very high precision thanks to several procedures like the use of “RealColor” technology, an accurate system to calibrate the color chart compared to the reagents; the validation of each reagent with NIST (National Institute of Standard and Technology) certified samples and the careful stock management to supply to our customers ONLY the freshest production batch.


  • Easyreading: “RealColor”technology.
  • High precision: thanks to the use of calibrated droppers
  • NISTvalidation: each batch of elos reagents is validated using NIST(National Instituteof Standardand Technology) samples
  • "Safe reagents": reagents and testing procedures are based on Low Risk Reagents. None of our test kits are based on Toxic Reagents.

  • Product Manuals & Documentation

    Elos Aqua Test Kit - pH Freshwater

    Owner's Manual available for download in Adobe PDF file format

    Manufacturer Info

    ELOS: the ultimate supplements and equipments for marine and planted aquariums.

    Elos is an aquaristik company that is exclusively dedicated towards the development, production, and marketing of specialised, high quality products for the aquarium market.

    We apply the latest advances in marine and fresh water sciences into our manufacturing and products. We are environmentally responsible as well as respectful of the key ethic rules on employment and production. Almost all our products are made in Italy, through few, well trained Internal Employee with the help of key external suppliers, Universities and Research Centres.

    Our commitment is to invest in the future, we take great care of details and innovations but beside this we also take care of our traditions. We apply modern process, but we also use traditional techniques, employing local craftsmen for the production.

    We take great care in designing our products, and packs to simplify their use making them pleasant to see and to touch. From the first contact with our products you will immediately perceive the care to produce them and the great attention toward each single detail.

    For all this we invite you, by heart, to try our products. Join your passion with us, use our products and make the best out of them and, we are sure, You will experience the delight of creating your personal, unique underwater world in a beauty you have never seen before.



    Experience Level: Intermediate

    pH Test KIt

    The ELOS Freshwater is easy to use and works great. I have checked the results with my HANNA Ph Meter.

    1 out of 1 found this review helpful

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    Experience Level: Expert

    Water Testing

    The PH Freshwater seems to be accurate, but I have not verified the testing. The one problem that this testing kit brings is the lack of a scale in the higher range. Some of fish that I keep have a need for a PH above 8.3, which is the limit of this particular testing kit. This is the reason that I have not given the Elos Aqua Test Kit for PH a five star rating. Other minor problems that I have encountered with this test is that the water drawing syringe is hard to read, and there isn't a marked level on the test tube. The test kit is also a little expensive. Basically I am satisfied with this company and the test kit.

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    Experience Level: Intermediate

    No Guessing pH

    There are a small ton of pH test kits on the market, and most of the low to mid-range priced kits are about the same. This one, however, has the added bonus having a gradient chart that is easy to use as a reference. The "blue" charts are sometimes hard for me to see, and have a smaller scale to test between. This one is very clear, very easy, and works as advertised. The only thing I don't care about is the cap they include. It doesn't fit very well, and is a pain to get back off the tube. Beyond that. Perfecto!

    7 out of 7 found this review helpful

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