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Salifert Dissolved Oxygen Test Kit


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  • Approximately 60 measurements
1 new from $20.69

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Frequently Bought Together

Salifert Dissolved Oxygen Test Kit + API Freshwater Master Test Kit, 2-Ounces, Laminated Color Card
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Product Details

  • Product Dimensions: 5 x 4.3 x 2 inches
  • Shipping Weight: 3.2 ounces
  • ASIN: B001EJ3DQ4
  • Average Customer Review: 4.2 out of 5 stars  See all reviews (8 customer reviews)
  • Amazon Best Sellers Rank: #41,021 in Pet Supplies (See Top 100 in Pet Supplies)
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Product Description

When an aquarium has insufficient regions deprived of oxygen (= anaerobic zones) or denitrification proceeds incompletely then nitrate will build-up. A too high nitrate concentration can result in unwanted algae-growth and these might irritate corals in their neighborhood. Nitrate as such also retards coral growth. The nitrate concentration in a proper functioning reef aquarium should preferably be lower than 1 mg/L. Fish-only aquariums would usually show much higher nitrate concentrations. Most test kits use a procedure in which a certain part of nitrate is converted chemically into nitrite and is measured as such. Once again, just as with nitrite testing, amine interference has a major impact on the measured value. If such an interference occurs concentrations much lower than actual will be measured. Conclusion: Many nitrate test kits are prone to amine interference. This can give results much lower than actual. The Salifert nitrate test does not suffer from such an amine interference. The very special ingredients allow a very fast and precise measurement. The range spans from very low to a very high nitrate concentration (approx. 0.05 - 20 mg/L as Nitrate-Nitrogen or 0.2 - 100 mg/L as nitrate ion). The kit can perform approx. 60 measurements.


Customer Questions & Answers

Customer Reviews

4.2 out of 5 stars
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Most Helpful Customer Reviews

2 of 2 people found the following review helpful By George T. Yurkon on November 29, 2013
Verified Purchase
This test kit does what it claims. I was having what appeared to be oxygen level problems in a Koi pond. This test kit helped me get the right amount of aeration to the pond. Takes a few minutes, but it works.
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I did 3 tests with this Oxygen Test by Salifert. All three tests showed no color at all, the water was clear after the test. I did the test correctly per the directions each time. The color scheme test chart does not show or tell you what the result means when you have clear water and no color to compare to the scheme test chart. Does thus no color mean that I have enough oxygen in my pond or not enough oxygen. I have a 1500 gallon pond 12'x 8' x 3.5'. I have a large ProEco 6 spout brass nozzle fountain running 24/7. I have 2 round aerators run by an Oase 450 air pump.
I would think that I have more than enough oxygen for my goldfish and koi. There are about 15 small fish that are 2 to 4" long.
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By Anthony Smith on June 13, 2014
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Simple to use. Takes a few minutes to complete the test, but there aren't other options (like simple test strips). I use it to test my koi pond water. Works as intended.
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The dissolved oxygen test kit for water is an inexpensive yet accurate alternative to much more expensive meters. The testing process involves a measured number of drops from 3 different bottles, then a comparison to a color chart. The process can get tedious and can take up to 10 minutes for each test. Otherwise the process is simple and easy.
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