Maintaining a healthy, safe aquarium environment for your fish is important, and regularly testing your water levels in the aquarium is critical to success. EasyStrips are a perfect solution. By quickly testing for all water quality issues in your aquarium water, EasyStrips provide accurate results with minimal effort, and have the most advanced technology in water testing because they're designed from the same medical and scientific laboratory technology. A healthy aquatic environment starts with clean water, so be sure to use EasyStrips to promote a vibrant aquarium. This kit is one of the most advanced kits that Tetra makes. It includes 25 of the Tetra 5 in 1 EasyStrips to test for pH, alkalinity (KH), water hardness (GH) and nitrate. You will get the most out of this kit to make sure you have the healthiest aquarium around. The Tetra test strips provide accurate results and help you treat your aquarium effectively.