I use Salifert for Nitrate, Calcium, Alkalinity, and magnesium; Hanna for Phosphate and Alkalinity; I'm ordering all RedSea Pro test kits next week for everything but Phosphate.
I like Salifert for Ca, nitrate and alk (which is all I usually test. Salifert kits are a little harder to use than Red Sea (neither are very difficult). I like the red sea for ammonia. The Red sea ones are very straight forward.
hth, Chris
I don't know that I ever measure ammonia, Chris. Red Sea is definitely straight forward. Most of those test kits are straight forward. I'm just unable to judge color accurately and I would bet most people are too. If you're wanting a general "I've got an F-load of nitrate" instead of "I have 23 ppm nitrate" then Red Sea is probably fine. I just like to know my numbers better than that when I do test...which admittedly is almost never. hah hah.
Randy...I love it. Hach supposedly makes decent products. I would be all about measuring things at home like we do in the lab.
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