{"product_id":"gp-pro-cal","title":"GP Pro-Cal","description":"\u003ch2\u003eCorrect Cal-Mag Deficiencies Before They Cost You Yield\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eGreen Planet Pro Cal\u003c\/strong\u003e is a premium \u003cstrong\u003ecalcium, magnesium and iron supplement\u003c\/strong\u003e that prevents and corrects the deficiencies that plague \u003cstrong\u003ehydroponics, coco and soil\u003c\/strong\u003e - especially on \u003cstrong\u003ereverse osmosis (RO), soft water or coco coir\u003c\/strong\u003e, where calcium and magnesium sit too low for healthy development. Pro Cal drives strong roots, efficient nutrient uptake and vigorous growth through both \u003cstrong\u003evegetative growth and flowering\u003c\/strong\u003e, helping plants hit their full yield potential.\u003c\/p\u003e\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCal-Mag plus iron:\u003c\/strong\u003e readily available calcium, magnesium and chelated iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeficiency fix:\u003c\/strong\u003e prevents and corrects common Cal-Mag shortfalls\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStronger structure:\u003c\/strong\u003e supports root development and stronger cell walls\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBetter uptake:\u003c\/strong\u003e improves nutrient absorption and overall plant health\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFewer disorders:\u003c\/strong\u003e reduces blossom-end issues, leaf spotting and weak new growth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadly compatible:\u003c\/strong\u003e suits hydro, coco and soil and most nutrient programmes across the cycle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTwisted new growth, brown spots or weak stems?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCalcium and magnesium deficiencies\u003c\/strong\u003e show as \u003cstrong\u003eslow growth, twisted new leaves, brown spots, weak stems and reduced yields\u003c\/strong\u003e - most common in \u003cstrong\u003ecoco\u003c\/strong\u003e and on \u003cstrong\u003eRO or rainwater\u003c\/strong\u003e. Pro Cal supplies readily available calcium and magnesium plus \u003cstrong\u003echelated iron\u003c\/strong\u003e and micronutrients, building stronger roots, healthier foliage and improved uptake for more vigorous veg, better flowering and denser, higher-quality harvests.\u003c\/p\u003e\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eShake well\u003c\/strong\u003e before use.\u003c\/li\u003e\n\u003cli\u003eFill your reservoir or watering can with fresh water.\u003c\/li\u003e\n\u003cli\u003eAdd \u003cstrong\u003eGreen Planet Pro Cal\u003c\/strong\u003e at \u003cstrong\u003e1.25 ml per litre\u003c\/strong\u003e of water.\u003c\/li\u003e\n\u003cli\u003eMix thoroughly \u003cstrong\u003ebefore\u003c\/strong\u003e adding other additives.\u003c\/li\u003e\n\u003cli\u003eAdjust \u003cstrong\u003epH\u003c\/strong\u003e if required.\u003c\/li\u003e\n\u003cli\u003eUse with \u003cstrong\u003eevery feed\u003c\/strong\u003e through veg and flower.\u003c\/li\u003e\n\u003cli\u003eDiscontinue about \u003cstrong\u003eone week before harvest\u003c\/strong\u003e if flushing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"hcs-specs\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e calcium, magnesium and iron supplement (Cal-Mag)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKey elements:\u003c\/strong\u003e calcium, magnesium, chelated iron plus micronutrients\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDose:\u003c\/strong\u003e 1.25 ml per litre, every feed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest for:\u003c\/strong\u003e RO\/soft water and coco coir grows\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse stage:\u003c\/strong\u003e vegetative growth and flowering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e hydroponics, coco and soil\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Green Planet","offers":[{"title":"1L","offer_id":53313456668938,"sku":"NUT-GRE2-001-01","price":20.0,"currency_code":"GBP","in_stock":true},{"title":"5L","offer_id":53409496334602,"sku":"NUT-GRE2-001-02","price":70.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/GPproCal1L.webp?v=1783317184","url":"https:\/\/hydrocropshop.co.uk\/products\/gp-pro-cal","provider":"Hydro Crop Shop","version":"1.0","type":"link"}