{"product_id":"salifert-freshwater-carbonate-hardness-test-kit","title":"Salifert Freshwater Carbonate Hardness Test Kit","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e\n\u003cp\u003eThe Salifert Freshwater KH Profi Test Kit measures carbonate hardness so you can catch falling KH before the buffer runs out and pH crashes. Plant growth, biological filtration, and CO₂ all consume carbonate. Without a precise test, that drop is easy to miss, and plants and sensitive livestock can suffer.\u003c\/p\u003e\n\u003cp\u003eThe dropper reagents are made for freshwater mineral profiles. Each drop equals 1°dKH, with a clear blue-to-yellow colour change. 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\u003eFreshwater reagents:\u003c\/strong\u003e Drop sequence calibrated for freshwater KH, not marine chemistry.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour change:\u003c\/strong\u003e Sharp blue to yellow endpoint.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eScale:\u003c\/strong\u003e 1 drop = 1°dKH.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTests per kit:\u003c\/strong\u003e About 80.\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 Freshwater only. Not for marine or reef tanks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e Planted aquascapes, community tanks, shrimp breeding, and African cichlid systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustment:\u003c\/strong\u003e Use the results to set CO₂ injection or mineral buffering 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 freshwater baseline is 4–8 dKH. Cichlid tanks often need a higher value. How often to test:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNew tank cycling:\u003c\/strong\u003e Every 3 days, to see how organic acids interact with tap-water buffer.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow-tech planted:\u003c\/strong\u003e Weekly, to check water changes are replacing consumed minerals.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-tech (CO₂ injection):\u003c\/strong\u003e Twice a week, so CO₂ does not exhaust KH and cause a night-time pH crash.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShrimp and invertebrates:\u003c\/strong\u003e Test often; sudden KH\/pH shifts can disrupt moulting.\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 droppers as soon as you finish. Evaporation or moisture changes the drop count.\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 Freshwater series\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTests:\u003c\/strong\u003e Approx. 80\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eScale:\u003c\/strong\u003e 1 drop = 1°dKH (degrees of carbonate hardness)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":56330743742769,"sku":null,"price":15.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0922\/6066\/3601\/files\/salifer_carbinatehardness_test.png?v=1789713637","url":"https:\/\/www.williamstownaquarium.com.au\/products\/salifert-freshwater-carbonate-hardness-test-kit","provider":"Williamstown Aquarium","version":"1.0","type":"link"}