{"product_id":"ntlabs-calcium-test-kit","title":"NTlabs Calcium Test Kit","description":"\u003cp data-start=\"195\" data-end=\"636\"\u003eThe NT Labs Calcium Test Kit lets you measure the calcium concentration in your saltwater, reef, or brackish aquarium — a vital parameter for healthy corals, clams, and other calcium-dependent organisms. Because calcium is a building block for skeletons and shells, maintaining levels around 380–450 mg\/L (natural sea-water ~420 mg\/L) is important for steady coral growth and balanced water chemistry.\u003c\/p\u003e\n\u003cp data-start=\"638\" data-end=\"1001\"\u003eThis kit uses a titration method for greater accuracy: you add your sample, reagents, then slowly titrate until the colour change indicates the calcium concentration. It includes all required reagents, a pipette, a test vial, and clear instructions — enough for approximately 35 tests. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1003\" data-end=\"1258\"\u003eRegular testing with this kit helps you avoid problems caused by calcium depletion or imbalance (which can also affect carbonate hardness \/ KH), ensuring stable conditions for coral growth and overall aquarium health.\u003c\/p\u003e","brand":"Marine Fish Shop Online","offers":[{"title":"Default Title","offer_id":52011286364501,"sku":null,"price":12.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0967\/2278\/0501\/files\/calciumtest_2980c4bc-40ec-4eb5-948d-9cde87f5b259.webp?v=1764622886","url":"https:\/\/marinefishshop.uk\/products\/ntlabs-calcium-test-kit","provider":"Marine Fish Shop Online","version":"1.0","type":"link"}