{"product_id":"hesi-calmag-1-l-suplement-wapnia-i-magnezu-do-miekkiej-wody-i-ro","title":"Hesi CalMag 1 L – calcium and magnesium supplement for soft water and RO","description":"\u003ch2\u003e\n\u003cstrong style=\"color: #656b39;\"\u003eHesi CalMag 1 L\u003c\/strong\u003e - liquid calcium and magnesium supplement for soft water\u003c\/h2\u003e\u003cp\u003e\u003cstrong style=\"color: #656b39;\"\u003eCalMag\u003c\/strong\u003e by Hesi is a liquid mineral supplement that adds calcium and magnesium to watering water. It was developed for crops watered with soft, demineralized water, rainwater, or reverse osmosis (RO) filter water, which usually lacks these two elements.\u003c\/p\u003e\u003cp\u003eCalcium builds cell walls, supports the plant's stable structure, and participates in signal transmission within tissues. Magnesium is a central component of chlorophyll, so when it is deficient, photosynthesis weakens and the leaves become pale and yellow. When supplied together, they help plants efficiently absorb other nutrients and maintain intensely green foliage.\u003c\/p\u003e\u003cp\u003eThe product balances the mineral content of soft water and can be used at every stage of cultivation - from seedlings to flowering. It is especially recommended for modern growing systems and under LED lighting, where plants' need for calcium and magnesium may be higher.\u003c\/p\u003e\u003ch3\u003e\u003cstrong style=\"color: #656b39;\"\u003eKey features\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003esupplements calcium and magnesium in soft, distilled, and RO-filtered water\u003c\/li\u003e\n\u003cli\u003ebuffers soft water before adding base fertilizers\u003c\/li\u003e\n\u003cli\u003efor growing in soil, coco (also for buffering coco growing media), and hydroponics\u003c\/li\u003e\n\u003cli\u003esuitable for manual watering and automatic irrigation systems\u003c\/li\u003e\n\u003cli\u003efor use during all stages of plant development\u003c\/li\u003e\n\u003cli\u003ealso contains iron chelate and molybdenum\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong style=\"color: #656b39;\"\u003eComposition and NPK analysis\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNPK 5-0-0 (5% total nitrogen)\u003c\/li\u003e\n\u003cli\u003e7.5% magnesium oxide (MgO)\u003c\/li\u003e\n\u003cli\u003e5.0% calcium oxide (CaO)\u003c\/li\u003e\n\u003cli\u003eiron chelate and molybdenum\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong style=\"color: #656b39;\"\u003eApplication\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eHesi CalMag supplements calcium and magnesium at every stage of cultivation when plants are watered with soft water, rainwater, or reverse osmosis water. It is useful for home plant collections, in greenhouses, and in gardens - anywhere water has a low mineral content, as well as when the first signs of calcium or magnesium deficiency appear on the leaves. It can be combined with base fertilizers in soil, coco, and hydroponic cultivation.\u003c\/p\u003e\u003ch3\u003e\u003cstrong style=\"color: #656b39;\"\u003eDirections for use\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoft water:\u003c\/strong\u003e add CalMag to the water until the electrical conductivity (EC) reaches 0.4-0.5 mS\/cm; with soft tap water, use a correspondingly smaller amount depending on the starting EC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistilled or RO water (EC 0):\u003c\/strong\u003e 3-4 ml per 5 L of water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 ml per 50 L of water\u003c\/strong\u003e raises the MgO level by 15 mg\/L (approx. 9 mg\/L Mg) and the CaO level by 10 mg\/L (approx. 7 mg\/L Ca)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 ml per 100 L of water\u003c\/strong\u003e raises the MgO level by 38 mg\/L (approx. 23 mg\/L Mg) and the CaO level by 25 mg\/L (approx. 18 mg\/L Ca)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eShake the bottle vigorously before use. With RO or very soft water, add CalMag first, before the base fertilizers. After mixing all ingredients, check the pH and EC of the prepared solution.\u003c\/p\u003e\u003ch3\u003e\u003cstrong style=\"color: #656b39;\"\u003eSafety and storage\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eStore in the original, tightly closed container in a cool, shaded place out of reach of children and animals. The product is not intended for consumption. Avoid contact with the eyes and skin.\u003c\/p\u003e\u003ch3\u003e\u003cstrong style=\"color: #656b39;\"\u003eProduct information\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 1 L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm:\u003c\/strong\u003e liquid concentrate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e calcium-magnesium supplement, NPK 5-0-0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrowing medium:\u003c\/strong\u003e soil, coco, hydroponics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Hesi Plantenvoeding B.V., the Netherlands\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong style=\"color: #656b39;\"\u003eHesi CalMag\u003c\/strong\u003e in a 1 L bottle is a simple way to supplement calcium and magnesium wherever watering water is too low in minerals.\u003c\/p\u003e","brand":"Hesi","offers":[{"title":"Default Title","offer_id":54228973617480,"sku":"MS-1138","price":65.6,"currency_code":"PLN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/2649\/0440\/files\/ms-1138-1.jpg?v=1791299553","url":"https:\/\/www.mrseed.eu\/en\/products\/hesi-calmag-1-l-suplement-wapnia-i-magnezu-do-miekkiej-wody-i-ro","provider":"mr.seed","version":"1.0","type":"link"}