What are my nitrates? Color chart help

grisha

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Hi gang, api test lover here.
Can you tell me if I’m reading 5 or it’s between 0 and 5?
Best, thank you
6931389A-9866-4859-8F05-D0BBAE1487D2.jpeg
 

Spare time

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I think 0. I am colorblind which doesn't help but typically when I have been told its 0 it looks like that :)
 

BighohoReef

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That's not at 0. I'd say 5-10ppm. Now go add corals and fish I kid, I kid :)
 
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grisha

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That's not at 0. I'd say 5-10ppm. Now go add corals and fish I kid, I kid :)
Thank you
Now another pic with the trick.
I place vial Over the color chart to see if I can tell shade difference through the vial
DA718459-C3F7-446D-ACEF-BAD5D3E856D1.jpeg
 

Uncle99

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I’m seeeing 2-3ppm, but API tests are not that accurate.
Anything under 10ppm is good for me, and it’s certainly lower than 10.
 

Rybren

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I took a photo of your first photo and used the colour matching tool in the Aquarium Note app.

Using the lighter colour on the left-hand side of the vial, it shows a value of about 2.5
 

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