High Efficiency Test SuiteThis 6-in-1 aquarium test kit. The test strip can monitor 6 elements at once, including: total hardness, nitrate, nitrite, chlorine, carbonate and pH. Then you can determine exactly whether your aquarium is healthy water.Wide scope of applicationTest strip kits are widely used in fish ponds, ponds, shrimp aquariums and other aquariums. It is a good helper to quickly and accurately determine the water quality. Studies show that your aquarium should be tested at least twice a week to check water quality and prevent fish loss.High Quality MaterialThe aquarium test strips are made of premium fiber paper and a non-bleeding plastic cushion. After the research and design by experienced experts, the test paper will not bleed, and the results can be obtained quickly and accurately.Easy to use & read Immerse the test paper in water and remove it after 2 seconds. Place it horizontally for 60 seconds and compare it with the color chart on the bottle. It is necessary to complete the reading within 30 seconds to get accurate water quality results.Sealed package100 water quality test strips are included in a closed bottle, which can perform 100 tests on your aquarium . After removing the test paper, tighten the bottle cap in time to prevent the test paper from being contaminated with water. Note: The data is all measured manually, please allow error of 1-3cm, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.