API Test Kit Nitrate for Fresh or Saltwater.
Measures nitrate levels in both fresh & saltwater aquariums. Tests nitrate levels from 0 to 160 ppm. 90 tests per kit.
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Great Review by Workharddieproud
I have tried several nitrate test kits but keep going back to API nitrate test kit. As always, Aquacave has great service, prices and selection, fast shipping. (Posted on 9/1/2014)