API Saltwater Master Test Kit


The API® SALTWATER MASTER TEST KIT measures the 4 most important saltwater parameters – pH, ammonia, nitrite, and nitrate – to enable easy testing of your tank’s natural cycle, and to aid in maintaining a thriving saltwater aquarium. Testing is fast, easy, and accurate, yielding precise results, and comes with 4 glass test tubes with snap-tight caps and a convenient holding tub for easy storage. This kit also includes a complete, step-by-step instructional booklet with a color chart that provides information on how to correct unsafe water conditions. Each SALTWATER MASTER TEST KIT will conduct 550+ tests, so you can get the most out of your kit for years of fast, accurate water testing.

We recommend that you take a few minutes each week to monitor your aquarium conditions and create a better underwater world for your fish. Testing your aquarium water has never been so easy or accurate!

Contains 550 tests and includes 6 test solutions, easy-to-ready instructions, 4 glass test tubes and color chart


  • Tests for high-range pH, ammonia, nitrite & nitrate
  • It protects saltwater aquarium fish & invertebrates
  • This four-in-one test kit comes with four test tubes
  • Includes waterproof holding tray for testing bottles
  • Includes test tube rack and complete instructions

Product Instructions

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