The API GH & KH Test Kit is an essential tool for maintaining the health and stability of your aquarium. This easy-to-use kit measures the levels of carbonate hardness (KH) and general hardness (GH) in your water, providing crucial information for the overall health of your aquatic plants and animals. With accurate and reliable results, you can make informed decisions about water changes and supplementations to create the optimal environment for your aquarium inhabitants. Regular testing of GH and KH levels is essential for preventing pH fluctuations and maintaining a balanced ecosystem in your aquarium. Keep your aquatic pets healthy and thriving with the API GH & KH Test Kit.
 
Directions: For Testing KH:
• Rinse a clean test tube with water to be tested.
• Fill the test tube with 5 ml of water to be tested (to the line on the tube).
• Holding the bottle vertically, add KH Test Solution, one drop at a time. Be sure to count the number of drops being added.
• Cap the test tube and invert several times after each drop.
• The test is completed when the water in the test tube, after having been shaken, turns from blue to yellow.
If you have difficulty discerning the color after the first drop of test solution is added, remove the cap from the test tube and, while holding it over a white background, look down through the tube.
• The KH value is determined by the number of drops of test solution that must be added to turn the water in the test tube bright yellow.
For Testing GH: 1. Rinse a clean test tube with water to be tested. 2. Fill the test tube with 5 ml of water to be tested (to the line on the tube)