--- product_id: 3538368 title: "Flourish Iron 100 mL / 3.4 fl. oz." brand: "seachem" price: "COP 60658" currency: COP in_stock: true category: "Seachem" url: https://www.desertcart.co/products/3538368-flourish-iron-100-ml-3-4-fl-oz store_origin: CO region: Colombia --- # Ferrous iron for optimal plant absorption Highly concentrated liquid formula pH-independent solubility ensures consistent dosing Flourish Iron 100 mL / 3.4 fl. oz. **Brand:** seachem **Price:** COP 60658 **Availability:** ✅ In Stock ## Summary > 🌿 Unlock your aquarium’s lush potential with every drop! ## Quick Answers - **What is this?** Flourish Iron 100 mL / 3.4 fl. oz. by seachem - **How much does it cost?** COP 60658 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/3538368-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 - • **Chlorophyll Power-Up:** Prevents yellowing by fueling chlorophyll production in new leaves - • **Energy-Smart Formula:** No extra plant energy needed to extract iron—maximizes nutrient uptake - • **Precision Iron Boost:** Delivers bioavailable ferrous iron that plants crave for vibrant growth - • **pH-Proof Performance:** Remains soluble and effective across typical aquarium pH levels - • **Concentrated & Compact:** 100 mL bottle packs a potent punch for long-lasting aquarium vitality ## Overview Seachem Flourish Iron is a highly concentrated liquid iron supplement designed specifically for planted aquariums. Utilizing ferrous iron, it ensures superior solubility and bioavailability across a wide pH range, promoting healthy chlorophyll production and preventing iron deficiency symptoms like leaf yellowing. Unlike chelated ferric iron products, it supports efficient nutrient uptake without taxing plant energy, making it a must-have for thriving aquatic plants. ## 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 Iron™. ## Features - Highly concentrated - Iron supplement - For planted aquarium ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00029QPKS | | Allergen Information | Yam Free | | Best Sellers Rank | #104,023 in Pet Supplies ( See Top 100 in Pet Supplies ) #871 in Aquarium Water Treatments | | Brand | Seachem | | Brand Name | Seachem | | Customer Reviews | 4.6 out of 5 stars 180 Reviews | | Global Trade Identification Number | 00000116047500 | | Included Components | Liquid | | Item Form | Liquid | | Item Type Name | Aquarium Conditioner | | Item Weight | 1.76 ounces | | Liquid Volume | 100 ml | | Manufacturer | Seachem Laboratories, Inc. | | Manufacturer Part Number | 475 | | Model Number | 475 | | Number of Items | 1 | | Number of Packs | 1 | | Pet Type | Fish | | Target Species | Fish | | UPC | 000116047500 | | Unit Count | 1 Count | ## Product Details - **Brand:** Seachem - **Item Form:** Liquid - **Item Weight:** 1.76 ounces - **Liquid Volume:** 100 ml - **Number of Packs:** 1 ## Images ![Flourish Iron 100 mL / 3.4 fl. oz. - Image 1](https://m.media-amazon.com/images/I/515uSC2JPIL.jpg) --- ## 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/products/3538368-flourish-iron-100-ml-3-4-fl-oz](https://www.desertcart.co/products/3538368-flourish-iron-100-ml-3-4-fl-oz) --- *Product available on Desertcart Colombia* *Store origin: CO* *Last updated: 2026-09-13*