When you first notice an issue in your saltwater aquarium, one of the first and most helpful steps you should take is water testing. The API SALTWATER MASTER TEST KIT measures the key indicators of aquarium health: pH, Ammonia, Nitrite, and Nitrate. This highly accurate, economical, and easy-to-use kit performs over 550 tests, and includes precise color charts and information on how to correct unsafe water conditions. Any unsafe water conditions can stress the fish and may prevent the fish from healing, so it is essential to correct any water problems before additional treatment.
Another option for water testing is API 5-IN-1 TEST STRIPS, which work quickly and easily to measure four key water parameters in saltwater aquariums: pH, KH, nitrite, and nitrate. This kit comes with information on how to correct unsafe water conditions, and contains highly precise color charts for easy comparison to test results.