Use to measure pH changes in marine aquariums, aquariums with African cichlids, and very alkaline tap water. Reads the pH of water within the high range of 7.4 to 8.8. 160 tests per kit.Freshwater/Saltwater High Range pH Test Instructions:Why Test pH?pH is the measure of acidity of water. A pH reading of 7.0 is neutral. A pH higher than 7.0 is alkaline, and a pH lower than 7.0 is acidic. Certain freshwater fish thrive at a pH above 7.0. Live-bearers and goldfish require a pH of 7.5. African cichlids, marine fish and invertebrates require a pH between 8.2 and 8.4. Maintaining the aquarium at the proper pH ensures optimal water quality.Testing Tips:This test kit measures pH from 7.2 to 8.8 in either fresh or saltwater aquariums. This kit contains two High Range pH Test Color Charts ? one for freshwater aquariums, and one for saltwater aquariums ? so be sure to use the correct chart for your type of aquarium when interpreting test results. The Freshwater pH Test Color Chart is the appropriate chart to use for testing freshwater aquariums to which aquarium salt and African cichlid salt have been added. Artificial salt water should have a pH of 8.2. If not, adjustment with Aquarium Pharmaceuticals PROPER pH 8.2 is recommended. pH adjustment may be required in newly made salt water.Directions for Testing pH: Read thoroughly before testing. Do not allow Test Solutions to get into aquarium. To remove childproof safety cap: With one hand, push red tab left with thumb while unscrewing cap with free hand. Fill a clean test tube with 5 ml of water to be tested (to the line on the tube). Add five drops of Indicator Solution, holding dropper bottle upside down in a completely vertical position to assure uniformity of drops. Cap the test tube and invert tube several times to mix solution. Do not hold finger over open end of tube, as this may affect the test results. Determine the pH reading by matching the color of the solution against those on the High Range
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