{"product_id":"ionic-hard-water-grow","title":"IONIC Hard Water Grow – One-Part Hydro Nutrient for Hard Tap Water – Growth Technology","description":"\u003cp\u003e\u003cstrong\u003eType: Mineral\u003c\/strong\u003e\u003cbr\u003eMineral feeds are dissolved minerals your plant can use straight away. They're fast-acting and precise, but it is possible to overdo them, so stick to the dose.\u003c\/p\u003e\n\u003ch3\u003eMade for the Water That Actually Comes Out of Your Tap\u003c\/h3\u003e\n\u003cp\u003eMost nutrient labels quietly assume you're filling your reservoir with soft or RO water. Most British growers aren't. Hard tap water arrives already carrying calcium, and the bicarbonates in it drag your pH upwards all week, so you end up pouring in pH down just to stand still.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIONIC Hard Water Grow\u003c\/strong\u003e is built for the water you've actually got. It neutralises the bicarbonates behind the pH climb and is made on high-grade nitric acid, so you need less correcting acid. The calcium is balanced to allow for what your tap water already supplies, and the potassium to nitrogen ratio is set for strong vegetative growth. One bottle, no A and B.\u003c\/p\u003e\n\u003ch3\u003eWhy It Works\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for British hard water:\u003c\/strong\u003e not just the standard feed in a different bottle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTames pH creep:\u003c\/strong\u003e neutralises the bicarbonates that push hard water's pH high.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalcium already accounted for:\u003c\/strong\u003e balanced for the calcium your tap water supplies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-part feed:\u003c\/strong\u003e no A and B mixing, and no shaking needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt for leafy growth:\u003c\/strong\u003e the K to N ratio is set for the vegetative stage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFor Houseplant \u0026amp; Kitchen Growers\u003c\/h3\u003e\n\u003cp\u003eIf you fill your hydro kit, Kratky jar or bucket system straight from a hard-water tap, this is the feed for you. Herbs, lettuce and leafy greens get everything they need without you having to buy RO water or fight a rising pH every few days.\u003c\/p\u003e\n\u003ch3\u003eFor Growers\u003c\/h3\u003e\n\u003cp\u003eThe vegetative base feed for hydro on \u003cstrong\u003ehard or mains tap water\u003c\/strong\u003e. Switch to IONIC Hard Water Bloom when flowering starts. On soft or RO water, use \u003ca href=\"\/products\/ionic-hydro-grow\"\u003eIONIC Hydro Grow\u003c\/a\u003e instead.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDose:\u003c\/strong\u003e 5ml\/L in weeks 1–3, rising to 6ml\/L from week 4. EC runs a little higher than the standard Hydro range to allow for hard water's own minerals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhen to use:\u003c\/strong\u003e weeks 1–5 of the grow cycle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBooster:\u003c\/strong\u003e pair with IONIC Root Boost at 0.5–1ml\/L.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCal-mag:\u003c\/strong\u003e not part of the routine hard water schedule. Only add a cal-mag supplement if you see a recognised deficiency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRose's Pro-Tip:\u003c\/strong\u003e Add products to the tank one at a time, stirring between each, and never mix concentrates neat. Measure every dose: eyeballing is where most feed problems start.\u003c\/p\u003e\n\u003ch3\u003eWhich Size?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 Litre:\u003c\/strong\u003e ideal for a home hydro kit or small system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5 Litres:\u003c\/strong\u003e for a full tent or larger system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 Litres:\u003c\/strong\u003e the best value for big setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e one-part mineral base nutrient, vegetative stage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater:\u003c\/strong\u003e hard or mains tap water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDose:\u003c\/strong\u003e 5–6ml per litre\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e all hydroponic systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes:\u003c\/strong\u003e 1 Litre, 5 Litres, 20 Litres\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Growth Technology","offers":[{"title":"1 Litre","offer_id":54898005999962,"sku":"GTIHWG1","price":14.49,"currency_code":"GBP","in_stock":true},{"title":"5 Litres","offer_id":54898006032730,"sku":"GTIHWG5","price":37.99,"currency_code":"GBP","in_stock":true},{"title":"20 Litres","offer_id":54898006065498,"sku":"GTIHWG20","price":87.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9861\/4106\/files\/ionic-nutrients-nutrients-ionic-hard-water-grow-1260090886.png?v=1790892707","url":"https:\/\/blackflaghorticulture.com\/products\/ionic-hard-water-grow","provider":"Black Flag Horticulture","version":"1.0","type":"link"}