About This

• Contains one (1) API CARBONATE HARDNESS TEST KIT Aquarium Water Test Kit, including 1 bottle of testing solution, 1 color card and 1 test tube 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 carbonate hardness in freshwater and saltwater aquariums
• KH (Carbonate Hardness) stabilizes aquarium pH.
• Use weekly for monitoring and when water or fish problems appear