An economical solution for making sure your aquarium's chemical and mineral levels stay in balance. Each kit includes 75 tests with supplementary test references. High sensitivity levels for each procedure ensure precise results. You can even run up to 6 tests simultaneously for ideal efficiency. Using these kits ensure that all inhabitants remain healthy and continue to thrive in their environment. Includes all vials and equipment necessary to perform and interpret tests. For freshwater and marine aquariums.