--- product_id: 3538368 title: "Seachem Flourish Iron 100 mL / 3.4 fl. oz." brand: "seachem" price: "121 Lei" currency: RON in_stock: true reviews_count: 13 url: https://www.desertcart.ro/products/3538368-seachem-flourish-iron-100-ml-3-4-fl-oz store_origin: RO region: Romania --- # Highly concentrated iron formula Optimized for planted aquariums Water-soluble ferrous iron at any pH Seachem Flourish Iron 100 mL / 3.4 fl. oz. **Brand:** seachem **Price:** 121 Lei **Availability:** βœ… In Stock ## Summary > 🌿 Unlock your aquarium’s green potential with every drop! ## Quick Answers - **What is this?** Seachem Flourish Iron 100 mL / 3.4 fl. oz. by seachem - **How much does it cost?** 121 Lei with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/3538368-seachem-flourish-iron-100-ml-3-4-fl-oz) ## Best For - seachem enthusiasts ## Why This Product - Trusted seachem brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Root Zone Friendly:** Avoids iron precipitation and ensures consistent nutrient uptake for lush, healthy stems. - β€’ **pH-Proof Absorption:** Ferrous iron remains soluble and instantly available regardless of aquarium pH levels. - β€’ **Chlorophyll Catalyst:** Prevents yellowing by fueling chlorophyll production in new and young leaves. - β€’ **Energy-Smart Formula:** Unlike chelated iron, plants absorb iron directly without wasting energy converting it. - β€’ **Power-Packed Iron Boost:** Delivers a potent 100 mL dose of bioavailable ferrous iron for vibrant plant growth. ## Overview Seachem Flourish Iron is a highly concentrated 100 mL iron supplement designed specifically for planted aquariums. It delivers ferrous iron, the most bioavailable form, which remains soluble across all pH levels, ensuring rapid absorption by aquatic plants. This formula prevents iron deficiency symptoms like chlorosis and supports robust chlorophyll production, promoting vibrant, healthy growth without the energy drain associated with chelated iron supplements. ## Description Iron is immobile in plants. This means that plants cannot divert iron from older leaves to new ones. Therefore, deficiency symptoms appear first on new or young leaves. Because plants use iron to produce chlorophyll, a lack of iron results in chlorosis, or yellowing, of the younger leaves. Stems may also appear short and slender. If the deficiency is severe and prolonged, each new leaf emerges lighter in color than the preceding leaf. When choosing an iron supplement, it is important to know the distinction between the two forms of iron. The iron will be in one of two oxidation states: ferrous having a +2 charge, or ferric having a +3 charge. Ferrous iron, the preferred iron form and is soluble in water at any pH. Ferric iron, however, is only soluble below a pH of around 5.5; but if the pH is higher than 5.5, which more than likely it will be in a planted aquarium, the ferric iron will become insoluble and precipitate, settling in the root zone. Once this occurs, foliar absorbtion becomes impossible. To overcome this precipitation, competing products employ a chelate of ferric iron: iron-EDTA. While this does keep it soluble, it has a couple of drawbacks with respect to foliar uptake of iron. (1) Iron-EDTA bonding is very strong, thus very little of the iron will be available to the plants over a given time frame and (2) Physiological energy must be expended by the plant in order to extract the ferric iron from EDTA-iron and then convert (reduce) it to the ferrous form. Our approach is different in that we use a complex (not chelate) of ferrous iron in Flourish Ironβ„’. ## Features - Highly concentrated - Iron supplement - For planted aquarium ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B00029QPKS | | Best Sellers Rank | #975 in Aquarium Water Treatments | | Date First Available | October 2, 2001 | | Item Model Number | 475 | | Manufacturer | Seachem Laboratories, Inc. | | Product Dimensions | 1.62 x 1.62 x 4.88 inches; 1.76 ounces | ## Product Details - **Brand:** Seachem - **Item Form:** Liquid - **Item Weight:** 1.76 Ounces - **Liquid Volume:** 100 Milliliters - **Manufacturer:** Seachem Laboratories, Inc. ## Images ![Seachem Flourish Iron 100 mL / 3.4 fl. oz. - Image 1](https://m.media-amazon.com/images/I/515uSC2JPIL.jpg) ![Seachem Flourish Iron 100 mL / 3.4 fl. oz. - Image 2](https://m.media-amazon.com/images/I/71+vrdY27QL.jpg) ![Seachem Flourish Iron 100 mL / 3.4 fl. oz. - Image 3](https://m.media-amazon.com/images/I/91w6wi5yS0L.jpg) ![Seachem Flourish Iron 100 mL / 3.4 fl. oz. - Image 4](https://m.media-amazon.com/images/I/31mqPS0FHzL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nutrients *by on Reviewed in the United States March 15, 2026* Great for aquatic plants! ### ⭐⭐⭐⭐⭐ Planted Aquarium *by on Reviewed in the United States June 20, 2025* I've been buying this product for several years. I use it approximately once a week. Iron test kits show that applying this product definitely shows iron presence immediately after applying. After 24 - 48 hours, iron is no longer detected. Plants observably show better growth when using it. ### ⭐⭐⭐⭐⭐ Good product *by on Reviewed in the United States March 1, 2024* Had have my plants growing fast --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ro/products/3538368-seachem-flourish-iron-100-ml-3-4-fl-oz](https://www.desertcart.ro/products/3538368-seachem-flourish-iron-100-ml-3-4-fl-oz) --- *Product available on Desertcart Romania* *Store origin: RO* *Last updated: 2026-08-15*