High nitrate! HELP (same question, different person asking) - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 14 Old 10-03-2009, 01:09 PM
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Originally Posted by Twistersmom View Post
Interesting info Byron. When I started getting a reading for nitrates from the tap, I called the water company. They said they had just completed their twice a year water test and there where no nitrates in the water. (the test did not come from my house water though)
The water company told me that their test was much more accurate than any fish aquarium test kit and suggested the API nitrate test kit was picking up on something else in the water (perhaps safe nitrates) and was showing up as a nitrate reading.
I will try the longer shake and see what happens.
Byron, are there any nitrate test kits recommended over the API? The color chart is so hard for my to follow on the API and I do not like how the chart jumps from the safe 40 ppm all the way to an unsafe 80 ppm, with the colors looking the same.
All recommendations I've come across are for the API kits. Nutrafin (Hagen) also make kits, I have their pH kit as a second to my API, but I've never used their nitrate one. The concensus on the other forum was that API was OK, but the regeant needs to be shaken 2+ minutes.

I would expect a water company's tests to be more accurate that our test kits. Let us/me know if you get different results now.


Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #12 of 14 Old 10-06-2009, 07:02 AM
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Byron, thats great that you found that out....I went home last night and tested my water again...after shaking bottle #2 for 2 minutes and my nitrates read 20ppm.....not the usual 30....i didn't think it was right, so I re-tested shaking for only 30 seconds and it read about 40-50ppm.....did a third test again shaking for 2 minutes and it read about 20ppm again.

thought this might help anybody who was going to try it, hopefully you'll get similar results.

Thanks for the insight byron!
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post #13 of 14 Old 10-06-2009, 08:00 PM
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I still have not got around to the nitrate test. Glad to hear it worked for you Johnny!
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post #14 of 14 Old 10-06-2009, 08:56 PM
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either that or all of the pwc i've been doing played a part!
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