All-in-one testing to check Ammonia levels to keep fish safe. Fast and easy with results in 2 minutes. Detects any imbalances or concerns in water quality, enabling prompt corrective measures. Regular testing ensures a healthy environment for your fish and other inhabitants. Simply dip the strip into water, remove and wait, and compare the color-coded results to the chart for ammonia concentration. Depending on the results, a water change may be needed or use of an ammonia reducer in conjunction with a water change.