{"product_id":"red-sea-magnesium-test-kit","title":"Red Sea Magnesium Test Kit","description":"\u003cp\u003eThe \u003cstrong\u003eRed Sea Magnesium Test Kit\u003c\/strong\u003e measures magnesium in your reef or marine aquarium so you can keep it in the ideal range. Magnesium holds calcium and alkalinity stable, which is the foundation of healthy coral growth and a trouble-free dosing routine, so an accurate reading takes the guesswork out of balancing your tank. This colorimetric titration kit uses three reagents for a clear, repeatable endpoint and includes enough for roughly 75 tests. Browse the rest of our \u003ca href=\"\/collections\/water-testing\"\u003eaquarium test kits\u003c\/a\u003e to round out your testing station.\u003c\/p\u003e\n\u003cdiv style=\"background:#1a1a1a;color:#fff;padding:14px 16px;border-radius:6px;margin:14px 0;\"\u003e\n\u003cstrong style=\"color:#4dd0e1\"\u003eTarget 1250 to 1350 ppm.\u003c\/strong\u003e Magnesium keeps calcium and alkalinity in solution, so checking it regularly keeps your reef chemistry stable and your corals coloring up.\u003c\/div\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #006064;padding-left:8px;\"\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures magnesium (Mg) in marine and reef aquariums\u003c\/li\u003e\n\u003cli\u003eColorimetric titration with three reagents for a clear endpoint\u003c\/li\u003e\n\u003cli\u003eRoughly 75 tests per kit\u003c\/li\u003e\n\u003cli\u003eHelps you keep calcium and alkalinity stable for steady coral growth\u003c\/li\u003e\n\u003cli\u003eTrusted Red Sea reagent quality and accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #006064;padding-left:8px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;margin:8px 0;\"\u003e\n\u003ctr style=\"background:#E0F7FA;\"\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\u003cstrong\u003eMeasures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003eMagnesium (Mg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\u003cstrong\u003eMethod\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003eColorimetric titration, three reagents\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#E0F7FA;\"\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\u003cstrong\u003eTests per kit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003eApproximately 75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\u003cstrong\u003eRecommended range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e1250 to 1350 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#E0F7FA;\"\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\u003cstrong\u003eWater Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003eMarine and reef\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #B2EBF2;padding:6px 10px;\"\u003eRed Sea\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #006064;padding-left:8px;\"\u003eRecommended Pairings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-reef-foundation-c-magnesium-mg-1000-ml-liquid\"\u003eRed Sea Reef Foundation C Magnesium (liquid)\u003c\/a\u003e to raise a low reading\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-foundation-c-magnesium-powder-1kg-reef-supplement\"\u003eRed Sea Foundation C Magnesium Powder\u003c\/a\u003e for economical dosing\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/water-testing\"\u003eMore aquarium test kits\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/salt-water\"\u003eSalt water supplies\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #006064;padding-left:8px;\"\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the ideal magnesium level?\u003c\/strong\u003e Most reef tanks run best between 1250 and 1350 ppm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy does magnesium matter?\u003c\/strong\u003e It keeps calcium and alkalinity in solution. Without enough magnesium those two precipitate out and your dosing stops working.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many tests are in the kit?\u003c\/strong\u003e Roughly 75, using the included Mg-A, Mg-B, and Mg-C reagents.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use it in freshwater?\u003c\/strong\u003e No. Magnesium testing is a marine and reef parameter, so this kit is for salt water.\u003c\/p\u003e","brand":"Red Sea","offers":[{"title":"Default Title","offer_id":48891197522139,"sku":"R21485","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_7e5a5180-ddd2-467d-9931-d9ea5662dad0.jpg?v=1781882001","url":"https:\/\/squeakysaquatics.com\/products\/red-sea-magnesium-test-kit","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}