Feature: 1. PROFESSIONAL REAGENTS: A reagent for professionally measuring the PH value of water quality, suitable for sea water and fresh water. 2. DETERMINE PH: Help you quickly determine the PH balance of the water quality of fish tanks and aquariums. 3. CONFIRM PH LEVEL: Mix a few drops of the pH reagent liquid with the water sample and compare with the color chart to confirm the pH level of the fish tank water quality. 4. PH INFLUENCE: The pH value and water temperature of the water quality have a great impact on fish, so it is necessary to check the pH value of the water quality in time. 5. PH AND WATER TEMPERATURE: In general, the higher the pH and water temperature, the bigger the toxicity, and the harm to fish is similar to nitrite. Specification: Item Type: PH Value Test Agent Material: Test Agent Purpose: Ammonia Nitrogen Detection In Fish Tank. Package List: 2 x Test Agent1 x Test Bottle1 x Colorimetric Card Note: 1. After each inspection, the test bottle needs to be cleaned with tap water.2. The test agent contains chemical components, so use it with care.3. Store at low temperature and avoid light, avoid children's contact.