Strontium Sr Profi Test Kit, 25 Tests Easily test the strontium level in your tank. Trusted by discerning reefers for years, Salifert Test Kits feature some of the easiest to read results available to each testing method. The Salifert Strontium Test Kit contains 25 testsProduct Type: Strontium Test Kit for saltwater aquariumsKeywords: Testing / Reef Aquarium / All Collections