The Aquarium Pharmaceuticals (API) Nitrate NO3 Test Kit measures nitrate levels in both fresh & saltwater aquariums. High nitrate growth leads to algae growth and poor fish health. Tests nitrate levels from 0 to 160 ppm. 90 tests per kit.
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Orders over $49.99 Ship FREE.The Aquarium Pharmaceuticals (API) Nitrate NO3 Test Kit measures nitrate levels in both fresh & saltwater aquariums. High nitrate growth leads to algae growth and poor fish health. Tests nitrate levels from 0 to 160 ppm. 90 tests per kit.