{"product_id":"calcium-magnesium-test-kit","title":"Calcium \u0026 Magnesium Test Kit","description":"\u003cp\u003eMeasure calcium and magnesium with one organized titration kit built for saltwater and reef aquariums. Clear color-change endpoints, quick-read scales and formulas printed on the reusable stand make both tests easy to follow.\u003c\/p\u003e\n\u003ch3\u003eVideo tutorial\u003c\/h3\u003e\n\u003cdiv style=\"position:relative;padding-bottom:177.7778%;height:0;overflow:hidden;max-width:480px;\"\u003e\n\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/tCeBlJGQ6DM\" title=\"How to Use the Benchmark Calcium \u0026amp; Magnesium Test Kit\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen\u003e\u003c\/iframe\u003e\n\u003c\/div\u003e\n\u003ch3\u003eWhat’s included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e118 mL Calcium Buffer\u003c\/li\u003e\n\u003cli\u003e20 g Calcium Indicator powder\u003c\/li\u003e\n\u003cli\u003e118 mL Calcium Titrant\u003c\/li\u003e\n\u003cli\u003e59 mL (2 oz) Magnesium Buffer A\u003c\/li\u003e\n\u003cli\u003e7.5 mL Magnesium Indicator B\u003c\/li\u003e\n\u003cli\u003e118 mL (4 oz) Magnesium Titrant C\u003c\/li\u003e\n\u003cli\u003eSample vial, measuring and titration syringes, indicator scoop and reusable testing stand\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to test calcium\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eAdd 5.00 mL of aquarium water to the sample vial.\u003c\/li\u003e\n\u003cli\u003eAdd 1.00 mL of Calcium Buffer.\u003c\/li\u003e\n\u003cli\u003eAdd one level scoop of Calcium Indicator and swirl to pink-orange.\u003c\/li\u003e\n\u003cli\u003eFill the Calcium Titrant syringe to 1.00 mL.\u003c\/li\u003e\n\u003cli\u003eAdd titrant slowly while swirling; stop at the first stable purple endpoint.\u003c\/li\u003e\n\u003cli\u003eCalculate \u003cstrong\u003eppm Ca = mL of Calcium Titrant used × 600\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eHow to test magnesium\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eAdd 5.00 mL of aquarium water to the sample vial.\u003c\/li\u003e\n\u003cli\u003eAdd 0.50 mL of Magnesium Buffer A.\u003c\/li\u003e\n\u003cli\u003eAdd 2 drops of Magnesium Indicator B and swirl to wine-red.\u003c\/li\u003e\n\u003cli\u003eFill the Magnesium Titrant C syringe to 1.00 mL.\u003c\/li\u003e\n\u003cli\u003eAdd titrant slowly while swirling; stop at a pure blue endpoint.\u003c\/li\u003e\n\u003cli\u003eRecord the titrant used and calculate \u003cstrong\u003eppm Mg = 1944.40 × mL MG-C − 363.87 × mL CA-C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe case includes quick-read guidance for typical reef ranges of \u003cstrong\u003e400–600 ppm calcium\u003c\/strong\u003e and \u003cstrong\u003e1200–1500 ppm magnesium\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlready have the tools?\u003c\/strong\u003e Choose the \u003ca href=\"\/fr\/products\/calcium-magnesium-refill-reagents\"\u003eCalcium \u0026amp; Magnesium Refill Reagents\u003c\/a\u003e for the best refill value. Need only one component? Individual \u003ca href=\"\/fr\/products\/benchmark-calcium-buffer\"\u003eCalcium Buffer\u003c\/a\u003e, \u003ca href=\"\/fr\/products\/benchmark-calcium-indicator\"\u003eCalcium Indicator\u003c\/a\u003e, \u003ca href=\"\/fr\/products\/benchmark-calcium-titrant\"\u003eCalcium Titrant\u003c\/a\u003e, \u003ca href=\"\/fr\/products\/benchmark-magnesium-buffer\"\u003eMagnesium Buffer A\u003c\/a\u003e, \u003ca href=\"\/fr\/products\/benchmark-magnesium-indicator\"\u003eMagnesium Indicator B\u003c\/a\u003e and \u003ca href=\"\/fr\/products\/benchmark-magnesium-titrant\"\u003eMagnesium Titrant C\u003c\/a\u003e are available separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarning:\u003c\/strong\u003e Calcium Buffer contains 4% sodium hydroxide. Read every product label and SDS, wear suitable eye and hand protection, and keep out of reach of children.\u003c\/p\u003e","brand":"New Dawn Aquaculture","offers":[{"title":"Default Title","offer_id":67627132551357,"sku":"sku-48124621095166","price":84.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/6946\/3997\/files\/benchmark-calcium-magnesium-test-kit-hero_f7743e32-ab2a-4c96-b6ab-c56c0c06adbc.png?v=1790969169","url":"https:\/\/shoppa.ca\/fr\/products\/calcium-magnesium-test-kit","provider":"Shoppa.ca","version":"1.0","type":"link"}