--- product_id: 603586640 title: "FZONE Aquarium Root Fertilizer Spikes, 25 ct，NPK High-Concentration Easy Green Aquarium Fertilizer, Freshwater Aquarium Plant Fertilizer for Plant and Root Growth (25 Spikes Per Box)" brand: "fzone" price: "$1.11" currency: USD in_stock: false url: https://www.desertcart.us/products/603586640-fzone-aquarium-root-fertilizer-spikes-25-ct-npk-high-concentration store_origin: US region: United States of America --- # Slow-release formula lasts 2-3 months High NPK concentration for vibrant growth Targeted root zone nutrient delivery FZONE Aquarium Root Fertilizer Spikes, 25 ct，NPK High-Concentration Easy Green Aquarium Fertilizer, Freshwater Aquarium Plant Fertilizer for Plant and Root Growth (25 Spikes Per Box) **Brand:** fzone **Price:** $1.11 **Availability:** ❌ Out of Stock ## Summary > 🌱 Unlock your aquarium’s lush potential with every spike! ## Quick Answers - **What is this?** FZONE Aquarium Root Fertilizer Spikes, 25 ct，NPK High-Concentration Easy Green Aquarium Fertilizer, Freshwater Aquarium Plant Fertilizer for Plant and Root Growth (25 Spikes Per Box) by fzone - **How much does it cost?** $1.11 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/603586640-fzone-aquarium-root-fertilizer-spikes-25-ct-npk-high-concentration) ## Best For - fzone enthusiasts ## Why This Product - Trusted fzone brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Probiotic Power:** Special probiotics enhance substrate nutrient breakdown for superior root uptake. - • **Optimized Coverage:** 25 spikes treat a 60x40x40 cm tank, perfectly tailored for freshwater aquascapes. - • **Eco-Friendly Formula:** Minimizes nutrient runoff to protect your aquarium’s delicate ecosystem. - • **Sustained Growth Boost:** Slow-release spikes provide consistent feeding for up to 3 months—less hassle, more bloom. - • **Precision Root Nutrition:** Direct nutrient delivery to roots maximizes absorption and plant vitality. ## Overview FZONE Aquarium Root Fertilizer Spikes deliver a high-concentration NPK formula directly to aquatic plant roots via slow-release sticks, promoting vibrant growth and rich coloration. Designed for freshwater tanks, these 25 spikes provide targeted nutrition for up to 3 months while minimizing nutrient runoff, enhanced by probiotics that improve substrate nutrient absorption. Ideal for hobbyists seeking an easy, economical, and eco-conscious way to elevate their aquatic plant health. ## Description desertcart.com : FZONE Aquarium Root Fertilizer Spikes, 25 ct，NPK High-Concentration Easy Green Aquarium Fertilizer, Freshwater Aquarium Plant Fertilizer for Plant and Root Growth (25 Spikes Per Box) : Patio, Lawn & Garden ## Features - Balanced and Comprehensive Nutrition--Fzone aquarium plant fertilizer is a stick-shaped root fertilizer, crafted with advanced technology and containing high concentrations of NPK and other essential nutrients. Freshwater Aquarium Plant Fertilizer is especially effective in promoting growth and enhancing color for aquatic plants with high fertilizer consumption and red aquatic plants. - Targeted Root Delivery-- Aquarium root fertilizer spikes efficiently target the root zone of aquatic plants, ensuring optimal nutrient uptake where it's most, essential for overall plant health. By releasing nutrients directly at the roots, they significantly minimize the risk of nutrient runoff into the water , preventing eutrophication and contributing to a stable aquatic ecosystem. - Long-Lasting and Economical--The slow-release formula ensures a continuous supply of nutrients, avoiding the peaks and troughs associated with other types of fertilizers, which remains effective for 2 to 3 months, and you can adjust root fertilizer Spikes' use based on the density and growth of your aquatic plants. This reduced need for frequent replacements not only saves time but also is more cost-effective in the long term, offering a convenient solution for aquarium hobbyists. - Special Effects--Fzone aquarium fertilizer, with its root-enhancing and protective ingredients, boosts root development and nutrient absorption, leading to healthier, fuller aquatic plants. It also contains special probiotics that break down substrate nutrients for better root uptake, making it a superior bio-fertilizer compared to chemical and organic options. - Usage--Each box comes with 25 fertilizer spikes, each capable of treating a 10x10 cm² area. One box is suitable for a 60x40x40 cm aquarium. For optimal plant growth, it's advised to change half of the aquarium's water the day following the fertilizer application. When water temperature rises above 77.0 °F, the period of peak nutrient release occurs sooner, necessitating more frequent water changes. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CQ4K6YPP | | ASIN | B0CQ4K6YPP | | Best Sellers Rank | #197,398 in Pet Supplies ( See Top 100 in Pet Supplies ) #1,469 in Aquarium Water Treatments | | Brand | FZONE | | Coverage | Suitable for 10*10 cm² each spike | | Customer Reviews | 4.1 4.1 out of 5 stars (135) | | Date First Available | December 13, 2023 | | Item Form | Sticks | | Item model number | RT01 | | Manufacturer | FZONE | | Manufacturer | FZONE | | Mixing Ratio | 12:4:25 | | Model Number | RT01 | | Number of Items | 1 | | Part Number | RT-01 | | Product Dimensions | 1.97 x 0.79 x 1.18 inches; 1.41 ounces | | Specific Uses For Product | Freshwater Aquarium Plants | | Target Species | Aquatic Plants | | Unit Count | 1 Count | | Warranty Description | 1 Year Manufacturer | ## Product Details - **Brand:** FZONE - **Item Form:** Sticks - **Manufacturer:** FZONE - **Number of Items:** 1 - **Specific Uses For Product:** Freshwater Aquarium Plants ## Images ![FZONE Aquarium Root Fertilizer Spikes, 25 ct，NPK High-Concentration Easy Green Aquarium Fertilizer, Freshwater Aquarium Plant Fertilizer for Plant and Root Growth (25 Spikes Per Box) - Image 1](https://m.media-amazon.com/images/I/71TCUZtj9OL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: How long can this root fertilizer last?** A: Generally, these spikes last for 2-3 months. However, the replacement frequency can vary depending on the plant type and aquarium conditions **Q: If the substrate is shallow, less than 1.6 inches, how should I use it?** A: There are two methods: You can place it horizontally instead of vertically. Or you can trim it shorter and use it. **Q: When should I start using this root fertilizer?** A: Generally, after aquatic plants have grown for a while, the nutrients in the soil begin to deplete and need replenishing. Alternatively, start using the fertilizer if you notice your plants becoming slightly yellow or wilted. --- ## 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.us/products/603586640-fzone-aquarium-root-fertilizer-spikes-25-ct-npk-high-concentration](https://www.desertcart.us/products/603586640-fzone-aquarium-root-fertilizer-spikes-25-ct-npk-high-concentration) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-10-15*