Clearly I'm color blind or something because I cannot seem to read this test. I thought I was at about 4ppm, but after doing two water changes to get ammonia down to that peridot green, I think it was maxed out or off the chart.
Now I'm in a bit of a dilemma since I don't know if I'm reading these colors right. The baseline might have a bit of a greenish cast to it? At least to my eye? It's possible there's ammonia in my tap water, though, so not sure how to get a real baseline.
What's the best way to view these test tubes, since I can see it as two different shades depending on how close to the card it is?