It’s important to monitor the pH value of your pond. That’s because a pH value of 6.5 to 8.0 will suit most species of freshwater aquarium fish, but a sudden or significant pH change can occur when tap water is added.
That’s why you should always check both aquarium and tap water pH before adding water to your aquarium.
The Tetratest® pH Kit was professionally developed to accurately determine the pH level in your freshwater aquarium. The kit contains one 10-ml test reagent (enough for 50 tests), a test vial, color scale, instructions and recommendations.