The saltwater test kit provides information on how to perform each test, how often to perform the tests, how to intepretate the results or the the API master test kit and how to correct any unsafe water conditions detected using the test kit.

The APi Saltwater Master Test Kit tests for:

• High range pH (7.4 - 8.8)
• Ammomia (NH3/NH4+)
• Nitrite (NO2-)
• Nitrate (NO3-)

A complete test kit for testing marine and reef aquarium water. Tests water four ways to protect marine fish and invertebrates from dangerous water conditions. The API Master Test Kit includes tests for: High Range pH, Ammonia, Nitrite, Nitrate, plus four test tubes, holding tray and test tube rack. Fast, easy and accurate.