{"product_id":"mills-nutrients-basis-a-b-hard-water","title":"Mills Nutrients - Basis A\u0026B (Hard Water)","description":"```html\n\u003csection class=\"gh-product-listing\"\u003e\n\n\u003ch2\u003eMills Nutrients Basis A\u0026amp;B (Hard Water) — Two-Part Organo-Mineral Base Nutrients for UK Growers\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Hard water growers wanting a reliable, easy-to-use two-part nutrient system that works across soil, coco, and hydro without the premium price tag\u003c\/p\u003e\n\n\u003cdiv class=\"gh-our-thoughts\" role=\"note\" aria-label=\"Our thoughts\"\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eOur thoughts\u003c\/strong\u003e\u003cbr\u003e\nThis is a solid workhorse nutrient system. Mills Basis A\u0026amp;B Hard Water does exactly what it should — it's formulated specifically for UK tap water, it's straightforward to use, and it doesn't overcomplicate things. If you're running hard water and want a two-part base that covers veg and flower without faffing about, this is one we recommend regularly to growers who want results without the faff.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eMills Basis A\u0026amp;B (Hard Water) is a \u003cstrong\u003econcentrated two-part organo-mineral base nutrient\u003c\/strong\u003e designed specifically for growers in hard water areas. It combines mineral salts with organic additives — giving you the control of hydroponics with the forgiving nature of organic growing. The hard water formulation is pre-balanced to handle high calcium and magnesium content in your tap water, which means you're not fighting nutrient lockout before you've even started. Works across all growing media: soil, coco, and hydro. One system, all stages, all methods.\u003c\/p\u003e\n\n\u003ch3\u003eHow it compares\u003c\/h3\u003e\n\u003cp\u003eThis sits squarely in the \u003cstrong\u003emid-range two-part nutrient market\u003c\/strong\u003e — proper kit at sensible money.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOrgano-mineral blend means fewer nutrient buildups than fully synthetic systems\u003c\/li\u003e\n\u003cli\u003eHard water formulation gives you an advantage UK growers don't get with standard A\u0026amp;B kits\u003c\/li\u003e\n\u003cli\u003eMore forgiving pH range than competitor systems — easier to dial in\u003c\/li\u003e\n\u003cli\u003eRequires double the dose of some competitors, but that's reflected in the pricing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAgainst General Hydroponics FloraDuo or Advanced Nutrients, you're trading slightly higher dosing for lower cost and UK-specific water chemistry. Against CANNA, you're getting simpler mixing with less faffing between veg and flower bottles.\u003c\/p\u003e\n\n\u003ch3\u003eUsage guidance\u003c\/h3\u003e\n\u003cp\u003eMills Basis A\u0026amp;B is straightforward, but mixing order matters:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMixing your nutrient solution\u003c\/strong\u003e\u003cbr\u003e\nNever mix parts A and B together dry. Add Part A to your water first, mix thoroughly, then add Part B. Use equal parts of both — scale your dosing rate from 1ml per litre up to 3.5ml per litre depending on plant stage and feeding strength.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor vegetative growth\u003c\/strong\u003e\u003cbr\u003e\nRun lighter feeds in early veg (1-1.5ml\/L), then build strength as plants establish. The blend promotes healthy root development and strong stem growth without pushing unnecessary flowering signals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor flowering\u003c\/strong\u003e\u003cbr\u003e\nMaintain full strength (2.5-3.5ml\/L) throughout. The A provides calcium and red iron for structural support; the B delivers magnesium and other essentials for resin and material production.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAcross different media\u003c\/strong\u003e\u003cbr\u003e\nWorks identically in soil, coco, or hydroponics. Hand-fed pots, drip systems, or full flood tables — the nutrient blend performs. Coco and hydro growers should run feeds to mild runoff; soil growers can feed slightly lighter and let the medium buffer naturally.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003epH management\u003c\/strong\u003e\u003cbr\u003e\nTarget pH 5.6-6.2 in hydroponic systems. The hard water formulation handles alkaline tap water better than soft water formulas, but you'll still want to check and adjust depending on your actual water source.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage\u003c\/strong\u003e\u003cbr\u003e\nKeep both parts in a dark, cool place. Concentrate will last years if stored properly — no special fridge needed.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFormat: \u003cstrong\u003eTwo-part concentrate (A \u0026amp; B)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAvailable sizes: \u003cstrong\u003e1L, 5L, 10L\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eDosing rate: \u003cstrong\u003e1–3.5ml per litre (equal parts A \u0026amp; B)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eType: \u003cstrong\u003eOrgano-mineral NPK base nutrient\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eNitrogen (N): \u003cstrong\u003eDual-source formulation\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePhosphate (P₂O₅): \u003cstrong\u003e4.1% w\/w\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePotassium (K₂O): \u003cstrong\u003e2.7% w\/w\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCalcium (Ca): \u003cstrong\u003e4% (Part A)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMagnesium (MgO): \u003cstrong\u003e0.7% (Part B)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eIron (Fe): \u003cstrong\u003e2% red iron (Part A)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSulphur (SO₃): \u003cstrong\u003e1.4% w\/w\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTrace elements: \u003cstrong\u003eBoron, copper, manganese, molybdenum, zinc\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eActive ingredients: \u003cstrong\u003eL-amino acids, humic \u0026amp; fulvic acids, root enhancers\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTarget pH: \u003cstrong\u003e5.6–6.2 (hydroponic systems)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFormulation: \u003cstrong\u003eHard water (EC starting point \u0026gt;0.3)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMedia compatibility: \u003cstrong\u003eSoil, coco, hydroponics, all watering methods\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWho this is for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGrowers in hard water areas tired of fighting mineral buildup and pH swings\u003c\/li\u003e\n\u003cli\u003eTwo-part nutrient users who want simplicity — no switching between veg and flower bottles\u003c\/li\u003e\n\u003cli\u003eHydroponic, soil, and coco growers wanting one system that works across all media\u003c\/li\u003e\n\u003cli\u003eBudget-conscious growers who don't want to pay premium brand markup for solid results\u003c\/li\u003e\n\u003cli\u003eIntermediate growers ready to move beyond all-in-one feeds but not ready for complex multi-part systems\u003c\/li\u003e\n\u003cli\u003eGrowers in the UK and Europe where hard tap water is standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNot ideal for soft water areas — grab the soft water version instead. Also not the best choice if you want pre-balanced veg and flower bottles (that's where CANNA's system has an edge).\u003c\/p\u003e\n\n\u003ch3\u003eOur take\u003c\/h3\u003e\n\u003cp\u003eMills Basis A\u0026amp;B Hard Water is what a good two-part nutrient should be: simple to mix, forgiving across media, and actually designed for the water that comes out of UK taps. It's not the cheapest per ml, but you're paying for a system that works without drama.\u003c\/p\u003e\n\u003cp\u003eThe organo-mineral blend means less nutrient salt creep, the hard water formulation saves you pH headaches, and it delivers results across veg and flower without needing a new bottle every eight weeks. Worth picking up while this stock lasts — particularly if you've been fighting hard water nutrient lockout with generic systems.\u003c\/p\u003e\n\n\u003c\/section\u003e\n```","brand":"MILLS","offers":[{"title":"1 Litre A \u0026 1 Litre B","offer_id":47916664783018,"sku":"762160","price":24.99,"currency_code":"GBP","in_stock":true},{"title":"5 Litre A \u0026 5 Litre B","offer_id":47916664815786,"sku":"762130","price":69.99,"currency_code":"GBP","in_stock":true},{"title":"10 Litre A \u0026 10 Litre B","offer_id":47916664848554,"sku":"762180","price":119.99,"currency_code":"GBP","in_stock":false},{"title":"20 Litre A \u0026 20 Litre B","offer_id":47916664881322,"sku":"762110","price":179.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/5540\/5400\/files\/mills_nutrients_basis_hard_water_a_b_1_litre_71b1eba3-878d-47a9-98af-e04b87bb6893.jpg?v=1769198290","url":"https:\/\/growershouse.co.uk\/products\/mills-nutrients-basis-a-b-hard-water","provider":"Growers House ","version":"1.0","type":"link"}