API Reef Aquarium Saltwater Test Kit

Tests calcium, carbonate hardness, phosphate and nitrate. Includes seven test bottles, easy-to-read instructions, glass test tubes and colour chart. Fast, easy and accurate. Only used once bought it for $62 from PetSmart. https://www.petsmart.ca/fish/food-and-care/water-quality-testers/api-reef-aquarium-water-test-kit-5324376.html