The Aquascape Copper Test Kit measures dissolved or chelated copper concentrations in ponds and aquariums. This easy-to-use kit provides accurate laboratory-quality testing that is simple to complete with the provided step-by-step instructions. 25 tests are provided with each kit and all necessary components are included. Copper is often used as a fish medication or algae treatment and it is important to monitor these levels when using copper as a treatment. The Aquascape Copper Test Kit is also ideal for testing tap water or source water for copper. Aquascape is passionate about the products we produce providing unique products designs and features that stand above the competition.