Contains one (1) API GH & KH TEST KIT Freshwater Aquarium Water Test Kit, including 2 bottles of testing solution and 2 test tubes with cap
• Helps monitor water quality and prevent invisible water problems that can be harmful to fish and plants and cause fish loss
• Accurately measures GH & KH in freshwater aquariums
• Water hardness is a measure of the dissolved mineral content of water and should match fish natural habitat to prevent fish stress and keep them healthy
• Use for weekly monitoring and when water or fish problems appear