Description:Water is essential for fish to live, just as air means for our humanity. Those who keep fish need to monitor the water quality and make sure the filter is working properly to create a healthy environment for the fish.6 in 1 aquarium test strips to help you test 6 important water parameters, including general hardness (GH), nitrate (iii), nitrate, PH, carbonate hardness (KH), and chlorine. Features:1. Easy operations, fast results, accurate reading.2. Monitor the water condition to maintain a healthy and reliable living environment for your fish or turtle.3. Widely used for aquarium, fish tank. Specifications:Product Name: 6-in-1 Aquarium Test Strips/Aquarium Test Kit/Fish Tank Test Strips/Aquarium Water Test KitMaterial: High Quality Fiber Test Time: About 60 Seconds Quantity: 100 Pieces Storage Condition: Store in a cool and dry place and avoid direct sunlightPacking List:1 set 6-in-1 Aquarium Test Strips (100 Pieces)Notes: 1. Due to the lighting effects and shooting angles, There is a color difference in the product, please understand.2. Due to manual measurement, there is a tolerance in the size of the product.