API AMMONIA 130-Test Freshwater and Saltwater Aquarium Water Test KitBrand: API Color: Brown Features: Contains one (1) API AMMONIA 130 Test Freshwater and Saltwater Aquarium Water Test Kit, including 2 bottles of testing solution, 2 color cards and 1 test tube with cap Helps monitor and adjust ammonia level and prevent invisible water problems that can be harmful to fish Accurately reads ammonia 0 8 ppm (mg L) Fish continually release ammonia and uneaten food and decaying organic matter also add ammonia to water Use