API Nitrate Test Kit Freshwater and Saltwater 90 Tests

Effective for both fresh & saltwater aquariums. High levels of nitrate are a food source for unwanted algae & indicate poor water quality & health problems for fish. Tests nitrate levels from 0 to 160 ppm. Use Instructions: To remove childproof safety cap: With one hand, push red tab left with thumb while unscrewing cap with free hand.1. Fill a clean test tube with 5 ml of water to be tested to the line on the tube.2. Add 10 drops horn Rate Test Solution lit holding dropper bottle upside down in a completely vertical position to assure uniformity of drops.3. cap the test tube and invert tube several times to mix solution.4. Vigorously shake the Nitrate Test Solution #2 for at least 30 seconds. This step is extremely important to insure accuracy of lest results. 5. Now add 10 drops from Nitrate Test Solution #2 holding dropper bottle upside coven in a completely vertical position to assure uniformity of drops.6. cap the test tube and shake vigorously for 1 minute. This ste