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The Red Sea and Salifert kits are the best in my opinion. I currently use the Salifert, but have heard great things about the Red Sea as well. And for Alkalinity I cannot recommend the Hanna Marine Alkalinity checker more. There isn't a more easier to use test kit for testing alkalinity.
Time to buy one of these!Agreed. After using Red Sea for some time I tried API and this video about sums up exactly how I felt about API:

