{"product_id":"red-sea-reef-colours-pro-multi-testing-kit","title":"Red Sea Reef Colours Pro Multi Testing Kit","description":"\u003cp\u003e\u003cstrong\u003eThe three colour elements, tested in one kit before you dose.\u003c\/strong\u003e The Red Sea Reef Colours Pro Multi Test Kit measures iodine, potassium and iron — the trace elements behind Red Sea's Trace-Colors coral colouration program. Trace elements have a narrower safe range than calcium or magnesium, so Red Sea's own guidance is to test before every dose rather than follow a fixed schedule. This kit is what makes that possible without buying three separate test kits.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree parameters, one kit\u003c\/strong\u003e — iodine, potassium and iron, each with its own dedicated test method.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColorimetric and titration methods\u003c\/strong\u003e — iodine and iron are read by colour comparator, potassium by titration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePairs directly with dosing\u003c\/strong\u003e — each result maps to a specific Trace-Colors supplement (A for iodine, B for potassium, C for iron).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e40 to 50 tests per parameter\u003c\/strong\u003e — potassium's titration reagent is the limiting factor at 40 full tests; see Specifications for the breakdown.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eNumber of tests\u003c\/th\u003e\n\u003cth\u003eRange\u003c\/th\u003e\n\u003cth\u003eAccuracy\u003c\/th\u003e\n\u003cth\u003eMethod\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIodine (I2)\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e0–0.09 ppm\u003c\/td\u003e\n\u003ctd\u003e±0.03 ppm\u003c\/td\u003e\n\u003ctd\u003eColorimetric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePotassium (K)\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e150–450 ppm\u003c\/td\u003e\n\u003ctd\u003e±12 ppm\u003c\/td\u003e\n\u003ctd\u003eTitration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIron (Fe)\u003c\/td\u003e\n\u003ctd\u003e45\u003c\/td\u003e\n\u003ctd\u003e0–0.09 ppm\u003c\/td\u003e\n\u003ctd\u003e±0.05 ppm\u003c\/td\u003e\n\u003ctd\u003eColorimetric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eCost per test\u003c\/h3\u003e\u003cp\u003eAt $159.50 for the kit, a full three-parameter test cycle (iodine, potassium and iron together) costs approximately \u003cstrong\u003e$3.99 per test\u003c\/strong\u003e, based on the 40-test potassium reagent — the parameter that runs out first. The iodine and iron reagents will outlast it; refill reagents let you keep testing those two after potassium reagent is used up.\u003c\/p\u003e\u003ch3\u003eWhat to do when a reading is out of range\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eReading\u003c\/th\u003e\n\u003cth\u003eCorrect with\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIodine low\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/red-sea-reef-care-iodine-trace-colours-a\"\u003eRed Sea Reef Care Iodine+ Trace Colours A\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePotassium low\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/red-sea-reef-care-potassium-trace-coral-b\"\u003eRed Sea Reef Care Potassium+ Trace Coral B\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIron low\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/red-sea-reef-care-iron-trace-colours-c\"\u003eRed Sea Reef Care Iron+ Trace Colours C\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e reef aquariums running or considering the Trace-Colors A\/B\/C\/D coral colouration program, and anyone wanting to confirm trace element levels before dosing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e freshwater aquariums, or as a general water quality kit — it doesn't test calcium, alkalinity, magnesium, ammonia, nitrite or nitrate. Pair it with the Reef Foundation Pro kit for those.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eStore reagents away from direct sunlight at room temperature, and keep bottle caps tightly closed between uses to prevent contamination. Check the use-by date printed on each reagent bottle before testing, and replace individual reagents as they run out rather than the whole kit.\u003c\/p\u003e\u003ch3\u003eGoes well with\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-reef-care-potassium-trace-coral-b\"\u003eRed Sea Reef Care Potassium+ Trace Coral B\u003c\/a\u003e — corrects a low potassium reading from this kit.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-reef-care-iodine-trace-colours-a\"\u003eRed Sea Reef Care Iodine+ Trace Colours A\u003c\/a\u003e — corrects a low iodine reading.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-reef-foundation-pro-multi-testing-kit\"\u003eRed Sea Reef Foundation Pro Multi Testing Kit\u003c\/a\u003e — tests calcium, alkalinity and magnesium alongside this kit's trace elements.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by Red Sea's standard consumer guarantee in addition to your rights under Australian Consumer Law. Ships standard courier — no cold chain or special handling required.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eWhy does the kit list a different number of tests for each parameter?\u003c\/h4\u003e\u003cp\u003eEach parameter uses its own reagent, consumed at a different rate per test. Potassium's titration method uses more reagent per test than the colorimetric methods for iodine and iron, so its 40-test count is the practical limit on how many full three-parameter cycles the kit supports.\u003c\/p\u003e\u003ch4\u003eDo I need this kit if I only dose one Trace-Colors element?\u003c\/h4\u003e\u003cp\u003eYou only need to test the elements you're dosing. If you're running the full four-part Trace-Colors program (A, B, C and D), this kit covers the three that have direct tests — iodine, potassium and iron.\u003c\/p\u003e\u003ch4\u003eCan I buy replacement reagents instead of a new kit?\u003c\/h4\u003e\u003cp\u003eYes — individual reagent refills are available so you don't need to replace the comparator or titration equipment once a single reagent runs out.\u003c\/p\u003e\u003ch4\u003eHow is this different from the Reef Foundation Pro kit?\u003c\/h4\u003e\u003cp\u003eReef Colours Pro tests the trace colour elements — iodine, potassium and iron. Reef Foundation Pro tests the major skeletal elements — calcium, alkalinity and magnesium. Most reef keepers running a full dosing program use both.\u003c\/p\u003e\u003ch4\u003eIs titration harder to use than a colour comparator?\u003c\/h4\u003e\u003cp\u003eIt takes a little more care — you're counting drops to a colour-change endpoint rather than matching a colour card — but it's the standard method for measuring potassium accurately at reef-relevant concentrations.\u003c\/p\u003e","brand":"RedSea","offers":[{"title":"Default Title","offer_id":54774152560931,"sku":"RED258","price":159.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/RED258_1.png?v=1772078592","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/red-sea-reef-colours-pro-multi-testing-kit","provider":"Nicks Aquarium Oceanarium Terrarium","version":"1.0","type":"link"}