{"product_id":"salifert-magnesium-test-kit","title":"Salifert Magnesium Test Kit","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e\n\u003cp\u003eThe Salifert Magnesium Profi Test Kit measures magnesium so you can catch drops before calcium and alkalinity precipitate, growth stalls, or colour fades. Calcification and coralline growth pull magnesium from the water; without a precise test, that decline is easy to miss.\u003c\/p\u003e\n\u003cp\u003eIt uses liquid titrants and a powder reagent, and is designed so calcium and strontium do not skew the result. Testing is done in a vial, not in the tank.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTitration:\u003c\/strong\u003e Multi-reagent sequence with a clear endpoint from pink\/purple to grey or blue.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e Steps of 30 mg\/L (ppm), so trends show up early.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRange:\u003c\/strong\u003e 150–1500 ppm.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTests per kit:\u003c\/strong\u003e About 50.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSimple workflow:\u003c\/strong\u003e Fast titration without extra lab steps.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOff-tank:\u003c\/strong\u003e The sequence runs in a dedicated vial, so reagents do not enter the aquarium.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShelf life:\u003c\/strong\u003e Stabilised reagents to hold accuracy when stored correctly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWater and system compatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWater:\u003c\/strong\u003e Marine and reef aquariums only. Not for standard freshwater or planted tanks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine use:\u003c\/strong\u003e SPS, LPS, soft-coral tanks, and macroalgae refugiums.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDosing:\u003c\/strong\u003e Use the results to set daily consumption and automatic magnesium doses instead of guessing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTesting and instructions\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAlways follow dosage \u0026amp; directions on product packaging.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eTypical marine target is 1280–1380 ppm, to help keep calcium and carbonate stable. How often to test:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNew tank \/ rock maturation:\u003c\/strong\u003e Weekly, to check salt mix and curing rock.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMixed reef \/ moderate load:\u003c\/strong\u003e Every 7–14 days, then adjust buffering or traces.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-demand SPS:\u003c\/strong\u003e Every 3–5 days, to track uptake from calcification.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-low nutrient (ULNS):\u003c\/strong\u003e Test often so parameters stay in range under strong lighting (sudden drops can trigger precipitation).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eStorage\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCaps:\u003c\/strong\u003e Seal bottles as soon as you finish. Evaporation or moisture in the reagents skews the titration.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBox:\u003c\/strong\u003e Cool, dry cupboard out of direct sunlight. Do not freeze or overheat the reagents.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVial:\u003c\/strong\u003e Rinse with RO\/DI water and dry with a clean tissue so leftover reagent does not contaminate the next test.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Salifert\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRange:\u003c\/strong\u003e Profitest series\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTests:\u003c\/strong\u003e Approx. 50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement range:\u003c\/strong\u003e 150–1500 ppm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":56329652404529,"sku":null,"price":29.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0922\/6066\/3601\/files\/salifert_magnesiumtest.png?v=1789711089","url":"https:\/\/www.williamstownaquarium.com.au\/products\/salifert-magnesium-test-kit","provider":"Williamstown Aquarium","version":"1.0","type":"link"}