A complete kit for testing tap water & pond water. Tests water 4 different ways to protect fish from dangerous water conditions. Tests include pH, ammonia, nitrite and salt. Kit contains instruction book, improved color cards for easier reading, 4 test tubes and holding tray. Tests include wide range pH, ammonia, nitrite, and Salt Level. Kit features 4 test tubes, instruction book, color cards, a holding tray for testing bottles and test tube rack.