--- product_id: 727882825 title: "Hydroponic Fertilizer GH ArmorSi 946ml" brand: "general hydroponics" price: "£65.68" currency: GBP in_stock: true category: "General Hydroponics" url: https://www.desertcart.co.uk/products/727882825-hydroponic-fertilizer-gh-armorsi-946ml store_origin: GB region: United Kingdom --- # boosts photosynthesis efficiency 946ml liquid volume enhances plant stress resistance Hydroponic Fertilizer GH ArmorSi 946ml **Brand:** general hydroponics **Price:** £65.68 **Availability:** ✅ In Stock ## Summary > 🌱 Unlock unstoppable growth and resilience with GH ArmorSi! ## Quick Answers - **What is this?** Hydroponic Fertilizer GH ArmorSi 946ml by general hydroponics - **How much does it cost?** £65.68 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/727882825-hydroponic-fertilizer-gh-armorsi-946ml) ## Best For - general hydroponics enthusiasts ## Why This Product - Trusted general hydroponics brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **pH Balancer:** Dual-action formula that enhances plant strength while fine-tuning pH up to 6.5 for ideal nutrient uptake. - • **Potent Silica Power:** Fortify plants with potassium silicate for unbreakable stems and robust root systems. - • **Stress Shield Booster:** Increase resistance to pests, temperature swings, and powdery mildew for healthier crops. - • **Optimized Growth Formula:** Tailor your feed with thin or thick mixes to match seedling or rapid growth phases perfectly. - • **Versatile Hydroponic Essential:** Perfect for hydroponics, coco, mixed cultivation, and potted plants—grow like a pro anywhere. ## Overview GH ArmorSi is a 946ml potassium silicate liquid fertilizer designed to strengthen plants by boosting photosynthesis and stress resistance. Ideal for hydroponics and various cultivation methods, it supports healthier, more resilient plants with customizable dosing for different growth stages, while also acting as a pH enhancer to optimize nutrient absorption. ## Description Product description Armor Silica is a potassium silicate additive. Increases plant strength and resistance to stress and increases the absorption rate of light required for photosynthesis increases productivity. It can also be used as a pH enhancer. Can be used for hydroponics, coco cultivation, mixed cultivation, potted plants, gardening, etc. Please use a thin formula for young seedlings and perennial plants, and a thick formula for rapidly growing annual plants Directions Dissolve in water for the first time. Stir well when adding to water ## Features - How to use///Dissolve in water first. Stir well when adding to water. Please add GH flora and other fertilizers later. Adjust the PH not exceed 6.5 - Thinner: Add 0.09 fl oz (0.25 ml) per 33.8 fl oz (1 L) of water to plant - [Thick] Add 0.02 fl oz (0.5 ml) per 33.8 fl oz (1 L) of water to plants - [Max] Mix 0.04 fl oz (1.0 ml) per 33.8 fl oz (1 L) of water to give to plants - (Leaf Surface Spraying) Mix 0.01 - 0.02 fl oz (0.25 - 0.5 ml) per 33.8 fl oz (1 liter of water ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00E5K5NS0 | | Amazon Bestseller | #110,430 in DIY, Tools & Garden ( See Top 100 in DIY, Tools & Garden ) #355 in Liquid Fertilizers & Plant Vitalizers | | Brand Name | General Hydroponics | | Customer Reviews | 4.7 4.7 out of 5 stars (1,617) | | Global Trade Identification Number | 00793094017824 | | Item Form | Liquid | | Item Weight | 2.4 Pounds | | Liquid Volume | 32 Fluid Ounces | | Manufacturer | General Hydroponics | | Model Number | GH1782 | | Number of Items | 1 | | Part Number | HGC732802 | | Specific Uses For Product | Hydroponic cultivation | | UPC | 793094000000 793094017824 827165706284 | | Unit Count | 946.0 Milliliters | ## Product Details - **Brand:** General Hydroponics - **Item Form:** Liquid - **Item Weight:** 2.4 Pounds - **Liquid Volume:** 32 Fluid Ounces - **Specific Uses For Product:** Hydroponic cultivation ## Images ![Hydroponic Fertilizer GH ArmorSi 946ml - Image 1](https://m.media-amazon.com/images/I/51wIr0+y4fL.jpg) ## Questions & Answers **Q: Can we use as foliar?** A: Armor Si™ is suitable for all types of plants during all stages of growth. It can be used for plants growing in hydroponics, Coco Coir and all types of media. Use as a growth enhancer with irrigation water or in addition to your regular fertilizers. Armor Si™ improves plant structure and foliar development, increases yield and improves flower and fruit production. Your plants will additionally experience improved heat and cold tolerance, stress resistance, improved light absorption which leads to greater plant stature. **Q: which product in the GH flora series do you add first . both armor si and flora micro claim they need to be added first** A: Always add your silicate first allowing it to dissipate completely in the water prior to adding anything else. 5mins or so...The silica will bind to everything around it locking everything out so don’t give it anything to bind to.. **Q: Can silica be used in early flower at heavier doses to reduce plant stretch and node spacing?** A: Hello, Silica can be used in early flower. It helps with stem and stock thickness as well as heat and drought resistance. Keep in mind silica supplements are alkaline and will raise your ph. Thanks, Eco **Q: Does it kill microbes?** A: No ## Frequently Bought Together - General Hydroponics Armor Si Plant Growth Enhancement, Quart - General Hydroponics CALiMAGic 1-0-0, Concentrated Blend of Calcium & Magnesium, Secondary Nutrient Deficiencies Helps Prevent Blossom End Rot & Tip Burn, Clean, Soluble, 1-Quart - General Hydroponics Liquid Kool Bloom Fertilizers, 1-Quart --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/727882825-hydroponic-fertilizer-gh-armorsi-946ml](https://www.desertcart.co.uk/products/727882825-hydroponic-fertilizer-gh-armorsi-946ml) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-02*