{"product_id":"professor-s-nutrients-premium-coco-rhp-certified-pure-blend-50l","title":"Professor’s Nutrients - Premium Coco – RHP Certified Pure Blend (50L)","description":"\u003csection\u003e\n\u003ch3\u003eProfessor’s Nutrients - Premium Coco – RHP Certified Pure Blend (50L)\u003c\/h3\u003e\n\u003cp\u003eFor the professional grower, the foundation of a high-yielding harvest starts with the substrate. Professor’s Nutrients Premium Coco is a world-class growing media, engineered specifically for high-performance hydroponics and container gardening. Derived from the highest quality fibrous coconut husks, this organic substrate is RHP certified, ensuring it meets the strictest international standards for purity and consistency. Unlike inferior coco blends, Professor’s Pure Blend undergoes a rigorous washing and pre-buffering process without chemical treatments, resulting in a stable, inert medium that allows you to take total control over your nutrient regime from day one.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eBest For:\u003c\/strong\u003e High-performance hydroponic systems, container gardening, flower and vegetable production, and growers requiring a sterile, pH-stable environment for explosive root development.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRHP Certified Quality:\u003c\/strong\u003e Guaranteed to be free from pathogenic germs, soil-borne diseases, and weeds. This certification ensures the substrate remains pure, clean, and consistent from the factory to your garden.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWashed \u0026amp; Pre-Buffered:\u003c\/strong\u003e Expertly processed to remove excess salts and sodium. This pre-buffering ensures the cation exchange sites are occupied by Calcium and Magnesium, preventing \"nutrient lockout\" in early plant stages.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Low EC (\u0026lt;0.5):\u003c\/strong\u003e Features a very low electrical conductivity, providing a \"blank canvas\" for your nutrient solution. This allows for precise control over your feeding schedule without interference from background salts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimised Air-to-Water Ratio:\u003c\/strong\u003e The unique fibrous structure provides high water absorption while maintaining essential aeration. This prevents root rot and encourages the rapid development of fuzzy white feeder roots.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH Stabilised (5.5 - 6.5):\u003c\/strong\u003e Naturally buffered to stay within the ideal range for hydroponic nutrient uptake, reducing the need for constant pH adjustments in your reservoir.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% Natural \u0026amp; Eco-Friendly:\u003c\/strong\u003e An environmentally sustainable and biodegradable alternative to peat moss, derived from renewable coconut husks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Professor’s Nutrients\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e 50 Litres (Loose Fill Bag)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH Range:\u003c\/strong\u003e 5.5 – 6.5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEC Level:\u003c\/strong\u003e Less than 0.5 mS\/cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e RHP Certified for Horticulture\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Washed and Buffered (No chemical treatments)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eUsage \u0026amp; Performance Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitial Saturation:\u003c\/strong\u003e While Professor’s Coco is pre-buffered, it is always best practice to \"charge\" the medium before planting. Saturate the coco with a half-strength nutrient solution containing a high-quality \u003cstrong\u003eCoco-specific nutrient\u003c\/strong\u003e and a root stimulant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrainage is Key:\u003c\/strong\u003e In hydroponic setups, aim for 10–20% runoff (drain-to-waste) with every feeding. This flushes out any accumulated mineral salts and pulls fresh oxygen into the root zone, maintaining the ideal EC levels within the pot.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe \"Dry Back\":\u003c\/strong\u003e Coco should remain moist but not waterlogged. Allow the top 2-3cm of the substrate to feel slightly dry before the next irrigation cycle to encourage roots to \"search\" for water, strengthening the root architecture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePot Selection:\u003c\/strong\u003e For maximum aeration, use Professor’s Coco in fabric aeration pots or air-pots. The increased oxygen exchange combined with the coco’s natural structure will significantly accelerate plant growth rates.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIdeal For (Uses)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRun-to-Waste Hydroponics:\u003c\/strong\u003e The preferred choice for automated dripper systems where precision and drainage are paramount.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutdoor Container Gardens:\u003c\/strong\u003e Excellent for balcony or patio pots, providing a lightweight, water-retaining alternative to heavy potting soils.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoil Amendment:\u003c\/strong\u003e Can be mixed with existing garden soil or perlite to improve aeration and moisture retention in clay-heavy or sandy environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote\u003e\n\u003cstrong\u003eBulk Ordering:\u003c\/strong\u003e Single 50L bag price shown. For commercial operations or pallet pricing, please contact us directly.\u003c\/blockquote\u003e\n\u003c\/section\u003e","brand":"Holland Forge","offers":[{"title":"Default Title","offer_id":48419891871844,"sku":"4660","price":44.9,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/6487\/0244\/files\/ChatGPTImageMay16_2026_02_20_18AM.png?v=1778869252","url":"https:\/\/www.greenhousepolytunnels.com.au\/products\/professor-s-nutrients-premium-coco-rhp-certified-pure-blend-50l","provider":"Greenhouse \u0026 Polytunnels","version":"1.0","type":"link"}