---
product_id: 49907428
title: "Flourish Highly Concentrated Iron, 500 ml"
brand: "seachem"
price: "€ 34.96"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.pt/products/49907428-flourish-highly-concentrated-iron-500-ml
store_origin: PT
region: Portugal
---

# Long-lasting, highly concentrated formula Ferrous gluconate for superior foliar absorption 10,000 mg/L iron concentration Flourish Highly Concentrated Iron, 500 ml

**Brand:** seachem
**Price:** € 34.96
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your planted aquarium game with iron-rich precision!

## Quick Answers

- **What is this?** Flourish Highly Concentrated Iron, 500 ml by seachem
- **How much does it cost?** € 34.96 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/49907428-flourish-highly-concentrated-iron-500-ml)

## 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

- • **Economical & Efficient:** Highly concentrated 500 ml bottle lasts longer, saving you time and money
- • **Effortless Integration:** Compatible with Seachem Flourish and Flourish Excel for a complete care system
- • **Trusted by Enthusiasts:** Backed by 4.5-star reviews and a 3-year warranty for peace of mind
- • **Power-Packed Iron Boost:** Delivers a potent 10,000 mg/L iron dose to supercharge plant growth
- • **Optimized Nutrient Delivery:** Ferrous gluconate ensures superior foliar feeding compared to iron-EDTA

## Overview

Seachem Flourish Highly Concentrated Iron is a 500 ml liquid fertilizer delivering 10,000 mg/L of ferrous gluconate iron, optimized for foliar feeding in planted aquariums. Designed to work seamlessly with other Seachem products, it promotes vibrant, thriving aquatic plants with a long-lasting, economical formula trusted by hobbyists worldwide.

## Description

Product Description Seachem Flourish Iron 500Ml Directions Add 1 capful (5 mL) per 40 L (10 US gallons) daily or every other day. Shake well before using. For best results, use with Seachem Flourish, Flourish Excel, and products. Keep out of reach children pets. Rinse hands after handling. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Box Contains water treatment See more

Review: Essential fertilizer for the planted aquariums. - Essential product for planted aquariums for sure, if you’re looking to have any success with this particular part of the hobby.
Review: Plants are thriving! - Another great Seachem product. Highly concentrated and lasts a very long time. Seachem are always cheap and long lasting so you can't go wrong. Essential product for a planted tank.

## Features

- Contains sensitizing substances. May produce an allergic reaction.
- Highly concentrated (10,000 mg/L)
- Ferrous gluconate iron
- Ferrous gluconate is better suited to foliar feeding than iron-EDTA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00025696C |
| Allergen Information | Gluten Free |
| Best Sellers Rank | 31,724 in Pet Supplies ( See Top 100 in Pet Supplies ) 502 in Aquarium Water Treatments |
| Brand Name | Seachem |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,645) |
| Global Trade Identification Number | 00000116047302 |
| Included Components | Seachem Flourish Highly Concentrated Iron |
| Item Form | Liquid |
| Item Type Name | Aquarium Plants |
| Item Weight | 0.5 Kilograms |
| Liquid Volume | 500 Millilitres |
| Manufacturer | Seachem |
| Manufacturer Part Number | 473 |
| Model Number | 473 |
| Pet Type | Fish |
| Product Warranty | 3 years |
| Target Species | Fish and Plants |
| UPC | 611102061747 078433221729 000116047302 |
| Unit Count | 500.0 millilitre |

## Product Details

- **Brand:** Seachem
- **Item form:** Liquid
- **Item weight:** 0.5 Kilograms
- **Liquid volume:** 500 Millilitres
- **Manufacturer:** Seachem

## Images

![Flourish Highly Concentrated Iron, 500 ml - Image 1](https://m.media-amazon.com/images/I/719RsBDETyL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: How many times per week needs to be used in a 50 gallon tropical aquarium?**
A: It really depends on your plants need and levels of iron in water I should by a good iron testing kit.

**Q: Does this stuff have co2 built into it as well?**
A: No

**Q: Can you use this with API leaf zone as i have few red plant's**
A: yes this should help red plants yo flourish

**Q: is this for unplanted plants?**
A: It should work for all live plants. I haven't had any issues with it at all.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Essential fertilizer for the planted aquariums.
*by J***D on 18 March 2025*

Essential product for planted aquariums for sure, if you’re looking to have any success with this particular part of the hobby.

### ⭐⭐⭐⭐⭐ Plants are thriving!
*by D***N on 9 March 2026*

Another great Seachem product. Highly concentrated and lasts a very long time. Seachem are always cheap and long lasting so you can't go wrong. Essential product for a planted tank.

### ⭐⭐⭐⭐ None
*by G***S on 23 November 2025*

A bit expensive but it seems to help the plants stay healthy .

## Frequently Bought Together

- Seachem Flourish Iron 500ml
- Seachem Flourish Potassium 500ml
- Seachem Flourish Freshwater Plant Supplement 500 ml

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---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-04-24*