Review on Accurate Nitrate (NO3) Test Kit for Optimal Water Monitoring - Salifert Nitrate Test Kit by Charles Lewellen

I think this is the best budget nitrate test kit and more than adequate for our aquarium needs. I have calibrated this Salifert kit at 5, 10, 25 and 50ppm levels and have found it to be accurate. The next step is the highly acclaimed LaMotte set, which is four times the price of the Salifert set. The difficulty with these inexpensive tests is reading the results. While this Salifert test kit can be a bit tricky to read, it is much better than the Seachem and API test kits (but API makes a good phosphate test kit), plus it is easier to use (4 drops of this and a scoop). from this .and you're done). I was surprised at the low quality of the Seachem kit - it doesn't look like Seachem is doing anything bad. This Salifert kit only uses 1ml of water and it would be much better if they designed it to use at least twice that much to make the results easier to read (I'm not sure if doubling the amount of water and then doubling the allowances leads to work).