{"product_id":"grodan-rockwool-mini-grow-cubes-cellmax-90-litre-bag","title":"Cultiwool - Mapito 80 Litre Bag","description":"```html\n\u003csection class=\"gh-product-listing\"\u003e\n\n\u003ch2\u003eCultiwool Mapito 80 Litre Bag — Professional Hydroponic Growing Media That Doesn't Compact\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Growers running NFT, drip, ebb and flow, or DWC systems who want superior oxygenation and reusability without premium pricing\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\nMapito sits in that sweet spot where professional performance meets real-world value. It's the substrate that serious growers choose when they're done guessing — loose granular structure means no root binding, better oxygen availability than traditional rockwool, and you can actually reuse it. One we recommend a lot for anyone moving beyond coco or clay.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eCultiwool Mapito is a \u003cstrong\u003eloose-fill hydroponic growing medium\u003c\/strong\u003e composed of finely cut stonewool flakes blended with polyurethane foam and coconut fibre particles. Unlike solid rockwool slabs that compact over time and bind roots, Mapito stays loose and aerated throughout the growing cycle. It delivers excellent water retention, superior nutrient uptake, and the kind of rootzone control that commercial growers rely on. At £30-45 per 80L bag, you're getting professional-grade media at entry-to-mid tier pricing.\u003c\/p\u003e\n\n\u003ch3\u003eHow it compares\u003c\/h3\u003e\n\u003cp\u003eMapito sits between traditional rockwool and coco coir in the hydroponic substrate spectrum.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Rockwool slabs:\u003c\/strong\u003e Loose granular structure prevents root binding and compaction; superior oxygenation; roots pull free cleanly for transplanting or system changeover\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Coco coir:\u003c\/strong\u003e Better water retention without the nutrient interference; requires lighter feeding schedules; less dust and mess; more structured for precision systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Clay pellets:\u003c\/strong\u003e Superior water holding capacity; works better in NFT and drip setups; maintains consistent saturation across cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn practical terms: the structure of Mapito gives you the aeration benefits of loose media without sacrificing water and nutrient retention. That's why commercial operations favour it for systems like GHE AquaFarm and WaterFarm.\u003c\/p\u003e\n\n\u003ch3\u003eUsage guidance\u003c\/h3\u003e\n\u003cp\u003eMapito adapts well to most hydroponic systems. Here's how to get the best from it:\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBefore first use\u003c\/strong\u003e\u003cbr\u003e\nRinse thoroughly with clean water to reduce EC and stabilise the medium. Monitor pH closely during initial use — regular pH checks are important when running any stonewool-based substrate.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNFT and drip systems\u003c\/strong\u003e\u003cbr\u003e\nMapito excels here. The loose granular structure and superior oxygenation make it ideal for precision irrigation. Good saturation and re-saturation mean plants establish quickly and nutrient uptake is efficient.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEbb and flow\u003c\/strong\u003e\u003cbr\u003e\nThe air-to-water ratio remains consistent across flood and drain cycles. Less prone to compaction than rockwool, so your medium performs reliably over multiple rotations.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDWC and passive systems\u003c\/strong\u003e\u003cbr\u003e\nWorks well as a support medium. The loose structure provides excellent root aeration even when partially submerged.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNutrient feeding\u003c\/strong\u003e\u003cbr\u003e\nRun lighter nutrient schedules than you would with rockwool. Mapito's composition means plants extract nutrients more efficiently — aggressive feeding will lead to salt accumulation. Start conservative and adjust based on plant response.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eReuse and sustainability\u003c\/strong\u003e\u003cbr\u003e\nAfter proper rinsing and disinfection between cycles, Mapito can be used several times. This makes it both cost-effective long-term and genuinely sustainable — important as the UK moves toward peat alternatives.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVolume: \u003cstrong\u003e80 litres per bag\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eComposition: \u003cstrong\u003eStonewool flakes, polyurethane foam particles, coconut fibre blend\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eStructure: \u003cstrong\u003eLoose granular (non-compacting)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAir-to-water ratio: \u003cstrong\u003eOptimised for aeration and water retention balance\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eNutrient retention: \u003cstrong\u003eExcellent\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eEC (pre-rinse): \u003cstrong\u003eVariable — rinse before use to reduce\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSaturation capability: \u003cstrong\u003eExcellent saturation and re-saturation\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBag dimensions: \u003cstrong\u003eHeight 63cm | Length 17cm | Width 14cm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eReusable: \u003cstrong\u003eYes, with proper rinsing and disinfection\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSystem compatibility: \u003cstrong\u003eNFT, drip, ebb and flow, DWC, passive systems\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\u003eCommercial and semi-commercial growers running precision irrigation systems\u003c\/li\u003e\n\u003cli\u003eAnyone moving from coco to a more structured hydroponic medium\u003c\/li\u003e\n\u003cli\u003eGrowers with multiple cycles who want to reduce media costs through reuse\u003c\/li\u003e\n\u003cli\u003eNFT and drip system operators looking for consistent, reliable performance\u003c\/li\u003e\n\u003cli\u003eGrowers concerned about UK peat regulations and wanting sustainable alternatives\u003c\/li\u003e\n\u003cli\u003eAnyone frustrated with rockwool compaction or root binding issues\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eParticularly well suited to setups where \u003cstrong\u003eaeration, nutrient control, and system efficiency matter more than simplicity\u003c\/strong\u003e. This is media for growers who understand their systems and want precision.\u003c\/p\u003e\n\n\u003ch3\u003eOur take\u003c\/h3\u003e\n\u003cp\u003eMapito does what professional growers need it to do: stays loose, aerates properly, retains water and nutrients consistently, and works across multiple system types without faffing about. The loose granular structure means no root binding, no compaction headaches, and plants that pull free cleanly when you need to move them. Feed it lighter than you would rockwool, rinse it properly before use, and it'll deliver reliably cycle after cycle.\u003c\/p\u003e\n\u003cp\u003eIf you're running a precision system and want media that performs like the commercial stuff without the premium price tag, this is worth picking up while stock lasts. Good time to buy — proper hydroponic substrate at a sensible price.\u003c\/p\u003e\n\n\u003c\/section\u003e\n```","brand":"CULTIWOOL","offers":[{"title":"Default Title","offer_id":47916522274986,"sku":"91282","price":26.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/5540\/5400\/files\/91282_966f00d8-0643-4682-8833-1b7741f62b7c.jpg?v=1769195165","url":"https:\/\/growershouse.co.uk\/products\/grodan-rockwool-mini-grow-cubes-cellmax-90-litre-bag","provider":"Growers House ","version":"1.0","type":"link"}