So I've been struggling to read Salifert Nitrate tests for the past 6-8 months (newbie reefer) since like many I've had trouble differentiating the various color shades. Since it was time for me to reorder, I decided to give Nyos a try. Ran the test tonight and I have to say that I'm making a permanent switch! Much easier to read and the total time is only a couple of minutes more than Salifert.
Just passing along another vote for Nyos.
Just passing along another vote for Nyos.