Hagen Nutrafin Nitrate (0.0-110.0 mg/l) Test Kit

Frequent testing of the nitrate levels in your aquarium is important because nitrates can accumulate quickly and cause serious complications in both freshwater and saltwater aquariums. Of course, aquariums with large fish populations require special attention to nitrates... this is a must have testing kit. NOTE: tap water can contain nitrate. This kit is for both freshwater and saltwater and contains 80 tests.