{"product_id":"fritz-kh-alkalinity-test-kit","title":"Fritz KH Alkalinity Test Kit","description":"\u003cdiv class=\"uk-width-2-3@m uk-first-column\"\u003e\n\u003cdiv class=\"uk-padding-large-bottom uk-padding-large@m uk-padding-remove-horizontal\"\u003e\n\u003ch1\u003eFritz Liquid Test Kits - Alkalinity\u003c\/h1\u003e\n\u003cdiv class=\"uk-margin-small-top uk-margin-medium-top@m uk-margin-large-left@m tm-hide-when-sticky\"\u003e\n\u003cul class=\"uk-list uk-list-bullet\"\u003e\n\u003cli\u003eEast to Read Instructions\u003c\/li\u003e\n\u003cli\u003eEssential for a Healthy Tank\u003c\/li\u003e\n\u003cli\u003eAccurate in both Fresh and Saltwater\n\u003cdiv class=\"uk-card uk-card-large uk-card-default uk-margin-large-top uk-border-top-large-teal uk-box-shadow-small\" id=\"about\"\u003e\n\u003cdiv class=\"uk-card-body\"\u003e\n\u003ch2 class=\"uk-heading-body tm-product-accordion-heading\"\u003eAbout \u003cspan class=\"uk-visible@m\"\u003eFritz Liquid Test Kits - Alkalinity\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cdiv class=\"tm-product-accordion-content\"\u003e\n\u003cp\u003eCarbonate hardness, or alkalinity (KH), is the measure of both carbonates and bicarbonates present in the water. The KH value of your water is important to know, as the carbonate hardness plays a significant role in the water’s pH and the water’s buffering capacity to keep that pH stable. KH naturally falls over time with the introduction of CO2 and other acids, and nitrification. Reverse osmosis water should be buffered with carbonates before use to raise and maintain KH. Some municipal tap water can have variable KH levels throughout the year and should be checked regularly. In saltwater tanks, KH can be tested to monitor the proper ionic balance when dosing.\u003c\/p\u003e\n\u003cp\u003eSoft water fish, like Discus and other South American cichlids - 0 to 4 dKH (0 - 70 ppm)\u003cbr\u003eTropical community fish, like tetras and betta - 4-8 dKH (70 - 140 ppm)\u003cbr\u003eAfrican rift lake cichlids - 8 to 12 dKH (140 - 215 ppm)\u003cbr\u003eMarine species - 8 to 12 dKH (140 - 215 ppm)\u003c\/p\u003e\n\u003cdiv class=\"uk-card uk-card-large uk-card-default uk-margin-large-top uk-border-top-large-teal uk-box-shadow-small\" id=\"directions\"\u003e\n\u003cdiv class=\"uk-card-body\"\u003e\n\u003ch2 class=\"uk-heading-body tm-product-accordion-heading\"\u003eDirections \u0026amp; Dosage\u003c\/h2\u003e\n\u003cdiv class=\"tm-product-accordion-content\"\u003e\n\u003cp\u003eTo remove childproof safety cap, push down while turning.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eFill a clean test tube with 5 ml of water to be tested (to the line on the tube).\u003c\/li\u003e\n\u003cli\u003eHolding KH Reagent Solution dropper bottle upside down in a completely vertical position add one drop at a time. Cap the test tube and gently shake between drops. Ensure you count the drops as they are added.\u003c\/li\u003e\n\u003cli\u003eThe test is complete when the water in the test tube, after having been gently shaken, turns from blue to yellow. If you have difficulty discerning the color after the first drop of test solution is added, remove the cap from the test tube and while holding it over a white background, look down through the tube.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe KH value is determined by the number of drops of reagent that must be added to turn the water in the test tube yellow. See conversion chart to determine KH.\u003c\/p\u003e\n\u003cp\u003eCorrective actions:\u003c\/p\u003e\n\u003cp\u003eTo increase the KH of your water, add Fritz pH Higher. For a more significant KH increase for African cichlid systems, add Fritz Rift Lake Cichlid Buffer as needed. Fritz recommends a minimum of 4 dKH (80 ppm) for nitrification when using FritzZyme 7 or FritzZyme Turbo Start 700 bacteria. \u003c\/p\u003e\n\u003cp\u003eTo decrease the KH of your water, add Fritz pH Lower, or perform partial water changes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Fritz","offers":[{"title":"Default Title","offer_id":46399564054705,"sku":null,"price":34.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/4194\/5009\/files\/Screenshot2025-11-19213538.png?v=1763552155","url":"https:\/\/bennysaquarium.com\/products\/fritz-kh-alkalinity-test-kit","provider":"Benny's Aquarium","version":"1.0","type":"link"}