The Aquascape Copper Test Kit provides quick and reliable results to measure copper concentrations in aquariums or ponds. Accurate, laboratory-grade testing can be easily completed with the provided components and step-by-step instructions. With 25 tests included in each kit, it is simple to monitor copper levels when used as an algae treatment or medication. The kit is also great for testing tap or source water for copper. Expertly measure and track copper concentrations in your aquarium or pond with Aquascape Copper Test Kit. Designed with accurate, laboratory-grade components and step-by-step instructions, you can perform reliable tests in no time. Each kit contains 25 tests, making it a convenient way to monitor copper levels when used as an algae treatment or medication. What's more, this kit can also be used to test tap or source water for copper.