API testing will help you maintain the correct environment for your aquarium fish. For most freshwater fish and even planst in your aquarium, General Hardness (GH) and Carbonate Hardness (KH) are key in managing water quality. API? GH & KH TEST KIT helps you replicate the natural habitat of your fish to prevent stress, keeping them healthy!
Contains: 2 test bottles, easy-to-ready instructions, and glass test tubes