I was always a little iffy on my red sea readings. I always thought it as a .25 more than a 0reading. My API is MUCH easier to read and the color difference is obvious. This has brought me to the conclusion that ease of differentiating colors is VERY important. I think I am going to piece together different test brands till I find the one thAt is easiest to read and differentiate. I was just curious how many people have come to the same conclusion?
