{"title":"GH plus","description":"\u003ch2\u003e What is the GH value?\u003c\/h2\u003e\n\n\u003cp\u003e The GH value (general hardness) indicates the amount of minerals—particularly calcium and magnesium—dissolved in the pond water. These minerals are essential for a healthy biological balance in the pond, the growth of aquatic plants, and the health of fish. A GH value that is too low can lead to problems such as reduced plant growth and a less stable pond environment.\u003cbr\u003e\u003c\/p\u003e\n\n\u003ch2\u003e Why use GH Plus?\u003c\/h2\u003e\n\n \u003cp\u003eWhen the GH value falls below the recommended level (usually between approximately 8° and 12° dH), supplementation is necessary. Rainwater, decalcified tap water, or frequent water changes can lower the GH value. With GH Plus, you can add minerals in a controlled manner to restore and maintain your pond water's balance. Because both GH-Plus and \u003ca title=\"kh-plus\" href=\"\/en\/collections\/kh-plus\"\u003eKH-Plus\u003c\/a\u003e affect water chemistry—and the balance between them is crucial—using both products together is not recommended. We recommend a waiting period between uses to prevent unexpected chemical reactions or overcorrection.\u003c\/p\u003e\n\n\u003ch2\u003e Who is GH Plus suitable for?\u003c\/h2\u003e\n\n\u003cp\u003e GH Plus is ideal for ornamental ponds, koi ponds, or swimming ponds that are home to valuable fish and plants. Whether you've just installed your pond or have been maintaining it for years, maintaining your GH level remains important for a healthy aquatic environment.\u003c\/p\u003e\n\n\u003ch2\u003e Usage \u0026amp; tips\u003c\/h2\u003e\n\n \u003cp\u003eFirst, measure the GH value of your pond with a \u003ca title=\"pond water testing\" href=\"\/en\/collections\/vijverwater-testen\"\u003etest kit\u003c\/a\u003e or drip test. If the value is below the norm, add GH Plus according to the dosage on the package. Check the GH value regularly, for example, after heavy rainfall or water changes, to avoid surprises. Combine GH Plus with good filtration, aeration, and plant care for optimal results.\u003c\/p\u003e\n\n\u003ch2\u003e Key benefits at a glance\u003c\/h2\u003e\n\n\u003cp\u003e Increases the overall hardness of the water without complicated procedures. Supports plants, fish, and bacteria—the foundation of a healthy pond environment. Easy to use: measure → dose → check. Meets the needs of both the average pond enthusiast and the demanding koi keeper.\u003c\/p\u003e\n\n \u003cp\u003eBy using GH Plus correctly and understanding your GH level, you'll lay the foundation for a stable, clear, and vibrant pond. Visit our category page for the full range and the right dosage options—for all pond sizes, from small to large.\u003c\/p\u003e","products":[{"product_id":"velda-gh-plus-500ml","title":"Velda GH plus 500ml","description":"Velda GH plus 500ml\u003cbr\u003e\u003cp\u003e Maintaining the water hardness (GH value) is crucial for a stable pond environment and healthy plant growth. This is especially important because biological processes in the pond continually reduce this hardness. The GH value is expressed in German degrees of hardness (DH). A suitable hardness ranges between 8 and 12°DH.\u003c\/p\u003e \u003cp\u003eVelda GH Plus is a highly effective product for increasing the total hardness of pond water. This hardness is primarily created by calcium and magnesium sulfates. These important minerals ensure that the environment remains stable, aquatic plants grow, and soil bacteria can develop.\u003c\/p\u003e\n\u003cp\u003e At a total hardness of at least 8 to 12 °DH, oxygenating plants and micro-organisms can develop well.\u003c\/p\u003e\n\u003ch3\u003e \u003cspan\u003eBenefits Velda gh plus 500ml:\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003e Increases the GH value of the pond\u003c\/li\u003e\n\n\u003cli\u003e Easy to apply\u003c\/li\u003e\n\n\u003cli\u003e increases hardness by 3°DH\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003e Included in the delivery:\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003e Instructions for use\u003c\/li\u003e\n\n\u003cli\u003e Velda gh plus 500ml\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"Velda","offers":[{"title":"Default Title","offer_id":47112583610655,"sku":"121952","price":9.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/0323\/4079\/products\/velda-gh-plus-500ml.jpg?v=1698398830"},{"product_id":"velda-gh-plus-1000ml","title":"Velda GH plus 1000ml","description":"Velda GH plus 1000ml\u003cbr\u003e \u003cp\u003eMaintaining the water hardness (GH value) is crucial for a stable pond environment and healthy plant growth. This is especially important because biological processes in the pond continually reduce this hardness. The GH value is expressed in German degrees of hardness (DH). A suitable hardness ranges between 8 and 12°DH.\u003c\/p\u003e\n\u003cp\u003e Velda GH Plus is a highly effective product for increasing the total hardness of pond water. This hardness is primarily created by calcium and magnesium sulfates. These important minerals ensure that the environment remains stable, aquatic plants grow, and soil bacteria can develop.\u003c\/p\u003e\n\u003cp\u003e At a total hardness of at least 8 to 12 °DH, oxygenating plants and micro-organisms can develop well.\u003c\/p\u003e\n\u003ch3\u003e \u003cspan\u003eBenefits Velda gh plus 1000ml:\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003e Increases the GH value of the pond\u003c\/li\u003e\n\n\u003cli\u003e Easy to apply\u003c\/li\u003e\n\n\u003cli\u003e increases hardness by 3°DH\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003e Included in the delivery:\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003e Instructions for use\u003c\/li\u003e\n\n\u003cli\u003e Velda GH Plus 1000ml.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"Velda","offers":[{"title":"Default Title","offer_id":47112584626463,"sku":"121953","price":15.3,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/0323\/4079\/products\/803a54169840aa04a4afccc5b75dda41.jpg?v=1698398743"},{"product_id":"duo-gh-kh-plus","title":"Velda Duo GH\/KH plus","description":"Velda Duo GH\/KH plus\u003cbr\u003e \u003cp\u003eDuo GH\/KH Plus increases the GH and KH values ​​of pond water by adding minerals. This results in a stable pond environment and promotes the growth of aquatic plants. If the water hardness is too low, it can slow plant growth and cause water acidification. To prevent this, it is important to regularly check the water parameters and adjust them accordingly. Ideally, a GH value between 8° and 12°DH and a KH value between 6° and 8°DH is ideal. This ensures that microorganisms and oxygen-producing plants, such as waterweed, hornwort, and pondweed, can develop well.\u003c\/p\u003e\n\u003cp\u003e The GH value, expressed in German degrees of hardness, indicates the total hardness of the water and is formed by calcium and magnesium sulfates. The KH value, also expressed in German degrees of hardness, indicates the carbonate hardness of the water and is also called the acid-binding capacity. Carbonate is formed by the binding of free carbon dioxide (CO2) to calcium and magnesium.\u003c\/p\u003e \u003cp\u003eOne 1000 ml package is sufficient to treat 10,000 litres of pond water.\u003c\/p\u003e\n\u003ch3\u003e \u003cspan\u003eBenefits of Velda Duo GH\/KH plus:\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003e Easy to apply\u003c\/li\u003e\n\n\u003cli\u003e Works very fast and effectively\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003ePackaging suitable for ponds up to 10,000 litres\u003c\/span\u003e\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003e Included in the delivery:\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003e Instructions for use\u003c\/li\u003e\n\n\u003cli\u003e Velda Duo GH\/KH plus\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"Velda","offers":[{"title":"Default Title","offer_id":47112647115039,"sku":"142060","price":18.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/0323\/4079\/products\/velda-duo-gh-kh-plus.jpg?v=1698399258"},{"product_id":"secret-gh-plus-37500-liter-1","title":"Secret GH plus 37,500 liters","description":"\u003cstrong\u003eSecret GH plus 37,500 liters\u003cbr\u003e\u003c\/strong\u003e\n \u003cp\u003eYour GH value, also known as the total hardness. The GH value in your pond consists of calcium and magnesium, or the dissolved amounts of calcium and magnesium in your pond. Because of the term \u003cem\u003e\"total,\"\u003c\/em\u003e it's sometimes assumed that your KH value also falls under this category, but this isn't the case. Carbonate hardness is a separate value.\u003c\/p\u003e\n\n\u003cp\u003e The dissolved metals calcium and magnesium are important for the health of the pond and the animals that live there. Calcium plays a role in bone formation, dental maintenance, and transports other minerals throughout the animal's body. Magnesium is particularly helpful in muscle building and the nervous system.\u003c\/p\u003e\n\n\u003cp\u003e Ponds with many plants, in particular, require a large amount of calcium and magnesium because plants use up a lot of these minerals. Therefore, it's especially important to keep your GH value in check! Try to keep your GH value between 8 and 12 for optimal balance in your pond!\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eDosage\u003c\/strong\u003e :\u003c\/p\u003e\n\n \u003cp\u003e1 kilo of Secret's GH Plus is sufficient to increase the total hardness of 37,500 litres of pond water by 1 point.\u003c\/p\u003e\n\n\u003cp\u003e Secret GH plus dissolves quickly in water and does not make it cloudy, the optimal value of your GH is between 8-12GH(DH)\u003c\/p\u003e\n\n\u003cp\u003e \u003cem\u003eDo not use simultaneously with medication or use KH+\u003c\/em\u003e\u003c\/p\u003e","brand":"Takazumi","offers":[{"title":"Default Title","offer_id":47113130475807,"sku":"WB10033","price":19.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/0323\/4079\/files\/gh-plus-voor-37500-liter-1kg.jpg?v=1774962344"},{"product_id":"secret-gh-plus-150000-liter","title":"Secret GH plus 150,000 liters","description":"\u003cstrong\u003eSecret GH plus 150,000 liters\u003cbr\u003e\u003c\/strong\u003e\n\u003cp\u003e Your GH value, also known as the total hardness. The GH value in your pond consists of calcium and magnesium, or the dissolved amounts of calcium and magnesium in your pond. Because of the term \"total,\" it's sometimes assumed that your KH value also falls under this category, but this isn't the case. Carbonate hardness is a separate value.\u003c\/p\u003e\n\n\u003cp\u003e The dissolved metals calcium and magnesium are important for the health of the pond and the animals that live there. Calcium plays a role in bone formation, dental maintenance, and transports other minerals throughout the animal's body. Magnesium is particularly helpful in muscle building and the nervous system.\u003c\/p\u003e\n\n \u003cp\u003ePonds with many plants, in particular, require a large amount of calcium and magnesium because plants use up a lot of these minerals. Therefore, it's especially important to keep your GH value in check! Try to keep your GH value between 8 and 12 for optimal balance in your pond!\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eDosage:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e 4 kilos of Secret's GH Plus is sufficient to increase the total hardness of 150,000 litres of pond water by 1 point.\u003c\/p\u003e\n\n\u003cp\u003e Secret GH plus dissolves quickly in water and does not make it cloudy, the optimal value of your GH is between 8-12GH(DH)\u003c\/p\u003e\n\n\u003cp\u003e \u003cem\u003eDo not use simultaneously with medication or use KH+\u003c\/em\u003e\u003c\/p\u003e","brand":"Takazumi","offers":[{"title":"Default Title","offer_id":47113130672415,"sku":"WB10035","price":39.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/0323\/4079\/files\/gh-plus-voor-150000-liter-4kg.jpg?v=1774962719"},{"product_id":"secret-gh-plus-375-000-liter","title":"Secret GH plus 375,000 liters","description":"\u003cstrong\u003eSecret GH plus 375,000 liters\u003cbr\u003e\u003c\/strong\u003e\n\u003cp\u003e Your GH value, also known as the total hardness. The GH value in your pond consists of calcium and magnesium, or the dissolved amounts of calcium and magnesium in your pond. Because of the term \"total,\" it's sometimes assumed that your KH value also falls under this category, but this isn't the case. Carbonate hardness is a separate value.\u003c\/p\u003e\n\n \u003cp\u003eThe dissolved metals calcium and magnesium are important for the health of the pond and the animals that live there. Calcium plays a role in bone formation, dental maintenance, and transports other minerals throughout the animal's body. Magnesium is particularly helpful in muscle building and the nervous system.\u003c\/p\u003e\n\n\u003cp\u003e Ponds with many plants, in particular, require a large amount of calcium and magnesium because plants use up a lot of these minerals. Therefore, it's especially important to keep your GH value in check! Try to keep your GH value between 8 and 12 for optimal balance in your pond!\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eDosage:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e 10 kilos of Secret's GH Plus is sufficient to increase the total hardness of 375,000 litres of pond water by 1 point.\u003c\/p\u003e\n\n\u003cp\u003e Secret GH plus dissolves quickly in water and does not make it cloudy, the optimal value of your GH is between 8-12GH(DH)\u003c\/p\u003e\n\n\u003cp\u003e \u003cem\u003eDo not use simultaneously with medication or use KH+\u003c\/em\u003e\u003c\/p\u003e","brand":"Takazumi","offers":[{"title":"Default Title","offer_id":47948461113631,"sku":"SC10007","price":89.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/0323\/4079\/files\/secret-gh-plus-10kg.jpg?v=1711024360"},{"product_id":"secret-gh-plus-562-500-liter","title":"Secret GH plus 562,500 liters","description":"\u003ch2\u003e\n\n \u003cstrong\u003e\u003cstrong\u003eSecret GH plus\u003c\/strong\u003e\u003c\/strong\u003e 562,500 liters\u003c\/h2\u003e\n\n\u003cp\u003e Your GH value, also known as the total hardness. The GH value in your pond consists of calcium and magnesium, or the dissolved amounts of calcium and magnesium in your pond. Because of the term \"total,\" it's sometimes assumed that your KH value also falls under this category, but this isn't the case. Carbonate hardness is a separate value.\u003c\/p\u003e\n\n\u003cp\u003e The dissolved metals calcium and magnesium are important for the health of the pond and the animals that live there. Calcium plays a role in bone formation, dental maintenance, and transports other minerals throughout the animal's body. Magnesium is particularly helpful in muscle building and the nervous system.\u003c\/p\u003e\n\n \u003cp\u003ePonds with many plants, in particular, require a large amount of calcium and magnesium because plants use up a lot of these minerals. Therefore, it's especially important to keep your GH value in check! Try to keep your GH value between 8 and 12 for optimal balance in your pond!\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eDosage:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e 15 kilos of Secret's GH Plus is sufficient to increase the total hardness of \u003cspan data-sheets-root=\"1\" data-sheets-value='{\"1\":3,\"3\":562500}' data-sheets-userformat='{\"2\":513,\"3\":{\"1\":2,\"2\":\"#,##0\",\"3\":1},\"12\":0}'\u003e562,500\u003c\/span\u003e litres of pond water by 1 point.\u003c\/p\u003e\n\n\u003cp\u003e Secret GH plus dissolves quickly in water and does not make it cloudy, the optimal value of your GH is between 8-12GH(DH)\u003c\/p\u003e\n\n\u003cp\u003e \u003cem\u003eDo not use simultaneously with medication or use KH+\u003c\/em\u003e\u003c\/p\u003e","brand":"Takazumi","offers":[{"title":"Default Title","offer_id":47948462817567,"sku":"SC10008","price":129.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/0323\/4079\/files\/secret-gh-plus-15kg.jpg?v=1711024561"}],"url":"https:\/\/vijverlevenhub.com\/en\/collections\/gh-plus.oembed","provider":"Vijverleven","version":"1.0","type":"link"}