API 5 in 1 Aquarium Test Strips for Aquarium Water Testing

API 5-in-1 Freshwater and Saltwater Aquarium Test Strips help prevent invisible water problems that can be harmful to fish. Use these strips to monitor your water and keep your fish safe and healthy. Features: Monitors levels of pH, nitrite, nitrate carbonate and general water hardness in freshwater and saltwater aquariums Dip test strips into aquarium water and check colors for fast and accurate results Helps prevent invisible water problems that can be harmful to fish and cause fis