Re: Seachem Nitrite test vs API test readings
I'm very sorry that you are having issues with the MultiTest: Nitrite/Nitrate test kit. If the API test kit is measuring in mg/L (ppm) then it is not necessary to use any conversions. If you have followed the instructions on the label for running the reference sample, then you should come out with 10 mg/L. I would recommend trying to run the reference one more time and if possible, get a second opinion on the color change. When I run this test, I always use the well plates on the bottom and lay the color chart right below so that I can directly compare as the color changes.
Also, if you could provide us with the 5 digit lot numbers off of the reagents in the kit, I will be glad to look further into this issue. Thank you for your patience and we look forward to your reply.