6-IN-1 QUICK DIP TEST STRIPS 25 COUNT - TK880
One Dip Tests for All 6 Levels in freshwater or saltwater aquariums: Chlorine, pH, Nitrate, Nitrite, Hardness, and Alkalinity      Details:  Remove one test strip from bottle and replace cap tightly. Hold strip at end with no pads. Dip strip (all pads) into aquarium water and remove immediately. Do not shake excess water from strip. Hold strip level to allow colors to develop. At 30 seconds, compare pH, Alkalinity, Hardness and Nitrate pads to color chart (on bottle for freshwater, paper insert for saltwater). At 60 seconds, compare Nitrate pad to color charts provided. Record results and dispose of test strip.  25 test strips.