Salffert Nitrate testing help

[Neo Jeo]

Salffert Nitrate testing when I look on the top it’s a very light pink. Maybe a 5? Or 2?

When I took at the side it’s like a 25.

What one do I read? It’s confusing. Any better test kit out there?

Thanks

 

[Drex]

Salffert Nitrate testing when I look on the top it’s a very light pink. Maybe a 5? Or 2?

When I took at the side it’s like a 25.

What one do I read? It’s confusing. Any better test kit out there?

Thanks

Following

 

[NickC]

If you are looking through the side, divide the result by 10. I.e. your side result of 25 would end up being 2.5

Looking through the top is hard to tell when there is little nitrate present; looking through the side and dividing by ten gets you a more accurate low-range result.