Most water problems are invisible to the eye. Quickly measure and modify the six aquarium levels that are most important to the health of your freshwater fish with the API FRESHWATER MASTER TEST KIT. To stay healthy and thrive, fish need properly balanced levels of ammonia, pH, high range pH, nitrite and nitrate. These levels can change rapidly and create harmful conditions when fish waste, uneaten food or other organic matter accumulate, or when untreated water is added. If left uncorrected, all of these can be harmful or even fatal to fish, with consequences such as reduction of oxygen, increase in stress and higher risk of disease.

The API FRESHWATER MASTER TEST KIT measures these six parameters with scientific accuracy and provides professional results. It comes with four test tubes, a holding tray and computer calibrated, laminated color card. Just fill the test tubes, add the test drops and compare results to the color card. Then follow the recommendations on the card if action is required. With API aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For almost 60 years API has developed premium solutions with proven and effective results for your family and ours. API offers a range of testing kits, water conditioners, and nutritionally superior food, because we’re dedicated to making a better underwater world. They work to provide a safe, hospitable environment for fish such as tropical community fish, cichlids, goldfish and more. At API, we understand the rewards and relaxation of fishkeeping because we have a passion for fish too.

• Comprehensive Testing: Measures 5 key parameters, pH, KH (carbonate hardness), GH (general hardness), nitrite, and nitrate, in one simple kit.
• Quick & Easy Use: Includes 25 test strips with color chart for fast, accurate water analysis in seconds.
• Great for Routine Monitoring: Ideal for weekly checks to help prevent common water quality issues before they affect fish health.
• Supports Fish & Plant Wellness: Helps maintain stable water conditions for a thriving aquarium ecosystem.
• Perfect for Beginners & Experts: A user-friendly choice for both new and experienced aquarists.
• Ensure your freshwater tank stays balanced and healthy with this all-in-one testing solution.