Except other brands don't make you tell the difference between red, light red, dark red, red orange, orange red, brick red, burnt red, smoked red, burgundy, wine, to be able to get a nitrate reading.Joe Fish;4570433;4570433 said:also I have compared API kits to many other brands including Elos
the readings were all the same only difference is the API kits are cheaper and easier to use
especially the calcium kit

jcardona1;4570781; said:Not blue to aquarmarine, or yellow to sunburst lemonade yellow![]()
Need spectral analysis to determine what color you match with. Next time I need to buy test kits I'm getting digital.jcardona1;4570781; said:And don't get me started on the GH test, another set of colors impossible to see the difference. For the GH test I bought Nutrafin test and it's so easy to see, blue to pink. Not blue to aquarmarine, or yellow to sunburst lemonade yellow![]()