{"product_id":"stonewool-slab-25x25x40mm-100cubes","title":"Stonewool Slab (25x25x40) 100 Cubes slab","description":"\u003cp\u003eGet your seedlings and cuttings off to a strong start with this slab of 100 Stonewool cubes. Balancing excellent moisture retention with plenty of oxygen around developing roots, Stonewool creates the ideal environment for healthy germination \u0026amp; vigorous root growth.\u003c\/p\u003e\u003cp\u003eWith 100 individual cubes, this slab is ideal for larger propagation projects, commercial growers or anyone raising plenty of seedlings and cuttings at once. Each 25 × 25 × 40mm cube is designed to fit standard 75 × 75 × 65mm Stonewool Blocks, making it easy to step plants up as they grow.\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003eWhy Growers Love It\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eSuitable For:\u003c\/strong\u003e Seeds, cuttings and hydroponic growing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eStrong Starts for Young Plants:\u003c\/strong\u003e Holds moisture and air to encourage healthy root systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIdeal for High-Volume Propagation:\u003c\/strong\u003e 100 individual cubes make it easy to raise large numbers of seedlings or cuttings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVersatile:\u003c\/strong\u003e Use alone in hydroponic systems or with Aqua Clay (LECA), perlite, coco coir and other hydroponic substrates.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBuilt for the Next Stage:\u003c\/strong\u003e These cubes fit perfectly into standard \u003cstrong\u003e75 × 75 × 65mm Stonewool Blocks\u003c\/strong\u003e, allowing plants to continue growing with minimal root disturbance.\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003eAbout Stonewool\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eStonewool is made by melting basalt and limestone rock, then spinning into fine fibres \u0026amp; compressing into cubes, blocks or slabs. The result is a sterile growing medium that balances moisture \u0026amp; airflow for healthy root development.\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003eGetting Started\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePre-Condition:\u003c\/strong\u003e Soak the cubes in pH 5.5 water before use (to dissolve lime).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePre-Soak Time:\u003c\/strong\u003e 30 seconds to 30 minutes, until evenly moist.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDon't Squeeze:\u003c\/strong\u003e Especially when wet - this can damage the fibre structure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWater During Light Hours:\u003c\/strong\u003e Water only when your plants are receiving light - never in the dark.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWater Wisely:\u003c\/strong\u003e Keep Stonewool moist, not waterlogged. Overwatering reduces oxygen around roots \u0026amp; may result in algae growth.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHandle Safely:\u003c\/strong\u003e We recommend wearing gloves \u0026amp; a dust mask when handling dry Stonewool, as fibres may cause temporary skin or respiratory irritation.\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003eExplore the Range\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eNeed a different size? See our \u003cstrong\u003e\u003ca href=\"https:\/\/www.growandbrew.co.nz\/products\/rockwool-cultilene-block-hole-75x75x65?_pos=3\u0026amp;_sid=81616d309\u0026amp;_ss=r\" title=\"Stonewool Block (75x75x65mm)\"\u003eStonewool Block (75×75×65mm)\u003c\/a\u003e \u003c\/strong\u003eand \u003ca href=\"https:\/\/www.growandbrew.co.nz\/products\/stonewool-slab-40x40x40mm-36cubes?_pos=2\u0026amp;_sid=65d05bb68\u0026amp;_ss=r\" title=\"Stonewool Slab (40x40x40mm) 36 Cubes\"\u003e\u003cstrong\u003eStonewool Slab (40 × 40 × 40mm) – 36 Cubes\u003c\/strong\u003e\u003c\/a\u003e so you can choose the right Stonewool product for every stage of propagation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMore cubes. More growing potential.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Grow \u0026 Brew","offers":[{"title":"Default Title","offer_id":40723879526452,"sku":"stonewool100","price":16.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0606\/7129\/5540\/files\/StonewoolSlab_25x25x40mm_100Cubes.png?v=1785367000","url":"https:\/\/www.growandbrew.co.nz\/products\/stonewool-slab-25x25x40mm-100cubes","provider":"Grow \u0026 Brew","version":"1.0","type":"link"}