The Planted Tank Forum - View Single Post - Color Deficient and cant tell nitrates, HELP!
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post #8 of (permalink) Old 07-21-2019, 11:02 PM
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That looks much like my test results for my 40 gallon. To me, being colorblind like you, it looks like about 10-20ppm, but my wife disagrees and she says it's closer to 40 or even more.
At any rate, it never hurts to do an extra water change.
Do a 40 or 50% change and check post the results.
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