When you first notice an issue in your freshwater aquarium, one of the first and most helpful steps you should take is water testing. The API FRESHWATER 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 800 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 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 five key water parameters: pH, Nitrite, Nitrate, Carbonate Hardness, and General Hardness. This kit comes with information on how to correct unsafe water conditions, and contains highly precise color charts for easy comparison to test results.