--- product_id: 18075301 title: "Brightwell Aquatics Ferrion Iron Supplement for Reef Aquariums, 250ml" brand: "brightwell aquatics" price: "€ 41.71" currency: EUR in_stock: true category: "Brightwell Aquatics" url: https://www.desertcart.hr/products/18075301-brightwell-aquatics-ferrion-iron-supplement-for-reef-aquariums-250ml store_origin: HR region: Croatia --- # Highly concentrated, fewer doses Supports photosynthetic marine life Proudly made in the USA Brightwell Aquatics Ferrion Iron Supplement for Reef Aquariums, 250ml **Brand:** brightwell aquatics **Price:** € 41.71 **Availability:** ✅ In Stock ## Summary > 🌊 Fuel your reef’s vibrant future with Ferrion – where science meets splash! ## Quick Answers - **What is this?** Brightwell Aquatics Ferrion Iron Supplement for Reef Aquariums, 250ml by brightwell aquatics - **How much does it cost?** € 41.71 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/18075301-brightwell-aquatics-ferrion-iron-supplement-for-reef-aquariums-250ml) ## Best For - brightwell aquatics enthusiasts ## Why This Product - Trusted brightwell aquatics brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted American Quality:** Brightwell Aquatics’ premium, USA-made supplement guarantees consistent, innovative reef care you can rely on. - • **Refugium & Planted Tank Essential:** Optimizes health and coloration of Caulerpa, Halimeda, Penicillus, and other marine plants thriving in refugiums. - • **Energize Your Reef’s Green Power:** Delivers essential iron to boost macroalgae, coralline algae, and zooxanthellate corals for vibrant growth. - • **Concentrated Formula, Maximum Impact:** Stronger than competitors, ensuring long-lasting results with minimal dosing—save time and effort. - • **Scientifically Engineered for Precision:** Ultra-pure ingredients crafted by marine experts to maintain stable iron levels without disrupting water chemistry. ## Overview Brightwell Aquatics Ferrion is a potent, scientifically formulated iron supplement designed to enhance photosynthetic marine organisms in reef aquariums. Its ultra-pure, concentrated liquid formula supports macroalgae, coralline algae, and zooxanthellate corals by maintaining optimal iron levels (0.05-0.10 ppm), promoting healthier growth and vivid coloration. Made in the USA, Ferrion requires fewer doses than competitors, ensuring long-lasting effectiveness without altering water chemistry. ## Description Brightwell Aquatics Ferrion is a highly concentrated, stable iron supplement designed to support photosynthetic marine organisms, including macroalgae, coralline algae, seagrasses, and zooxanthellate corals. Iron plays a critical role in photosynthesis, helping aquatic plants and corals efficiently absorb nutrients and grow. Ferrion is especially beneficial for aquariums with refugiums, planted reef systems, and corals relying on symbiotic zooxanthellae. Proper iron levels promote vibrant coloration in coralline algae, healthier plant development, and improved nutrient uptake. This professional-grade formula is stronger than most competitors, requiring fewer doses while ensuring long-term stability. Formulated by marine scientists, it contains ultra-pure ingredients to provide targeted iron supplementation without disrupting water chemistry. By maintaining an iron concentration of 0.05 - 0.10 ppm, Ferrion helps create an optimal environment for macroalgae, corals, and marine plants while preventing nutrient deficiencies that can slow growth. ## Features - SUPPORTS PHOTOSYNTHETIC ORGANISMS – Provides essential iron for macroalgae, coralline algae, mangroves, marsh grasses, and zooxanthellate corals. - BOOSTS MACROALGAE & REFUGIUM HEALTH – Helps Caulerpa, Halimeda, Penicillus, and other marine plants thrive in refugiums and planted aquariums. - HIGHLY CONCENTRATED FORMULA – More potent than most competing brands, ensuring long-lasting effectiveness with fewer doses. - SCIENTIFICALLY FORMULATED – Developed by marine experts with ultra-pure ingredients for safe, precise supplementation in reef environments. - AMERICAN-MADE EXCELLENCE – Brightwell Aquatics is an industry-leading brand committed to providing innovative and scientifically backed aquatic care products. Made in the USA, we consistently deliver advanced superior quality solutions to elevate the vibrancy and health of your aquarium. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001DCX3K8 | | ASIN | B001DCX3K8 | | Allergen Information | Sulphites Free | | Best Sellers Rank | #79,432 in Pet Supplies ( See Top 100 in Pet Supplies ) #706 in Aquarium Water Treatments | | Brand Name | Brightwell Aquatics | | Customer Reviews | 4.5 4.5 out of 5 stars (122) | | Date First Available | June 24, 2004 | | Global Trade Identification Number | 00810086010189 | | Included Components | Ferrion | | Item Form | Liquid | | Item Type Name | Fish Supplement | | Item Weight | 9.6 ounces | | Item model number | FER250 | | Liquid Volume | 8 fluid ounces | | Manufacturer | Brightwell Aquatics | | Manufacturer | Brightwell Aquatics | | Manufacturer Part Number | FER250 | | Model Number | FER250 | | Product Dimensions | 1 x 1 x 1 inches; 9.6 ounces | | Target Species | Fish | | UPC | 611101764007 810086010189 | | Unit Count | 1 Count | ## Product Details - **Brand:** Brightwell Aquatics - **Item Form:** Liquid - **Item Weight:** 9.6 ounces - **Liquid Volume:** 8 fluid ounces - **Unit Count:** 1 Count ## Images ![Brightwell Aquatics Ferrion Iron Supplement for Reef Aquariums, 250ml - Image 1](https://m.media-amazon.com/images/I/610pMjcIsBL.jpg) ![Brightwell Aquatics Ferrion Iron Supplement for Reef Aquariums, 250ml - Image 2](https://m.media-amazon.com/images/I/81Kdj-Rf2FL.jpg) ![Brightwell Aquatics Ferrion Iron Supplement for Reef Aquariums, 250ml - Image 3](https://m.media-amazon.com/images/I/81x26sOc1KL.jpg) ![Brightwell Aquatics Ferrion Iron Supplement for Reef Aquariums, 250ml - Image 4](https://m.media-amazon.com/images/I/81qol+j6jyL.jpg) ![Brightwell Aquatics Ferrion Iron Supplement for Reef Aquariums, 250ml - Image 5](https://m.media-amazon.com/images/I/81+90eBmwPL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Can be used in freshwater planted tanks?** A: As far as I am aware this product is designed based on marine chemistry. From Brightwell's website "Highly-concentrated and stable iron solution for supplementing aquaria containing hermatypic organisms (i.e. “photosynthetic” or zooxanthellate corals, clams, and their allies), macroalgae, coralline algae, mangroves, marsh grasses, and other desirable marine algae and plants. Particularly suited to systems outfitted with a refugium or mud system." **Q: The title says, "Brightwell Aquatics Abafer500 Ferrion Liquid Salt Water conditioners for aquarium". Is it liquid salt water or liquid iron?** A: It's a liquid iron supplement for marine aquariums (salt water) ## Frequently Bought Together - Brightwell Aquatics Ferrion - Concentrated Iron Supplement for Marine Fish and Reef Aquariums 250-ml - Brightwell Aquatics - ChaetoGro - Algae Nutrient Supplement for Chaetomorpha Growth in All Marine Fish Tanks - Multi-Nutrient Aquarium Water Treatments, 8.45 fl oz - Brightwell Aquatics - NeoPhos - Balanced Phosphorus Source for Phosphorus-Limited, Low-Nutrient Reef Aquaria - Aquarium Water Treatments, 16.9 fl oz --- ## 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.hr/products/18075301-brightwell-aquatics-ferrion-iron-supplement-for-reef-aquariums-250ml](https://www.desertcart.hr/products/18075301-brightwell-aquatics-ferrion-iron-supplement-for-reef-aquariums-250ml) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-08*