Tests tap water for high pH levels in the range of 7.4 to 8.8. A high ph of 8.8 is recommended for the African Cichlid. Includes: testing solution, test tube with cap, instructions, and computer analyzed laminated color card. To use: Fill clean test tube with five milliliters of water. Add five drops of testing solution. Cap tube. Do not hold finger over open end of tube as this may affect reading. Shake five seconds. Wait five minutes for color to develop. Read against chart.