{"product_id":"nt-labs-hardness-test-kit","title":"NT Labs Hardness Test Kit","description":"\u003cp\u003e\u003cstrong\u003eWhat is KH?\u003c\/strong\u003e\u003cbr\u003eKH, also known as “total alkalinity” or “carbonate hardness”, is a measure of the buffering capacity of the water in your aquarium. The buffering capacity refers to how well it can resist changes in pH.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is GH?\u003c\/strong\u003e\u003cbr\u003eGeneral Hardness is a measure of the total amount of minerals dissolved in the water. Water hardness lies on a spectrum between ‘soft water’ or ‘hard water’ depending on the amount of dissolved minerals: the more minerals present, the greater the hardness. Hard water is responsible for the build-up of limescale.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKH in detail:\u003cbr\u003eWhat is the correct KH level?\u003c\/strong\u003e\u003cbr\u003eThis test kit measures KH in dKH (where one dKH = 17.8 ppm as CaCO3). It is essential to maintain a minimum KH level of at least 4 dKH at all times. A KH of between 6 and 8 dKH is more desirable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat do I do if the KH level is wrong?\u003c\/strong\u003e\u003cbr\u003eCheck the KH level of your tap water. If the level is above 6 dKH, then regular water changes should keep the KH value in the aquarium topped up at a reasonable level. If the KH value of your tap water is below 6 dKH, you will need to add a KH buffer such as\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.nt-labs.com\/browse-products\/indoor\/aquariums\/kh-up-ph-stabiliser\/\"\u003eKH Up – pH Stabiliser\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto your aquarium\/pond.\u003c\/p\u003e","brand":"Aquatic Finatic ","offers":[{"title":"Default Title","offer_id":61744568271178,"sku":"RH065","price":8.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1035\/7433\/9914\/files\/timthumb_15.jpg?v=1778854555","url":"https:\/\/www.aquaticfinatic.co.uk\/products\/nt-labs-hardness-test-kit","provider":"Aquatic Finatic ","version":"1.0","type":"link"}