API 5-In-1 Test Strips Freshwater And Saltwater Aquarium Test Strips are the quick and easy way to test the 5 most important aquarium water parameters - pH, KH, GH, nitrate, and nitrite - in one easy step. Simply dip one test strip directly into the aquarium, and compare the colors on the strip to the color card provided to help prevent invisible water problems that can be harmful to fish. Each kit includes detailed information on how to interpret the test results and correct unsafe water conditions.
Tests five key water parameters pH, nitrite, nitrate, carbonate and general hardness.
Highly accurate color charts provide precise test results, identifying problems in your aquarium.
Chart colors are distinctive, making test results easy to read.
Recommendations help troubleshoot aquarium issues.
Superior moisture protection packaging ensures testing accuracy.