---
product_id: 89982180
title: "Brightwell Aquatics Ferrion Brightwell 250ml 385g"
brand: "brightwell aquatics"
price: "€ 4.14"
currency: EUR
in_stock: false
url: https://www.desertcart.gr/products/89982180-brightwell-aquatics-ferrion-brightwell-250ml-385g
store_origin: GR
region: Greece
---

# Treats up to 946 L per 250 ml bottle Precise dosing: 5 ml per 189 L every 2 days 4000 ppm chelated iron concentration Brightwell Aquatics Ferrion Brightwell 250ml 385g

**Brand:** brightwell aquatics
**Price:** € 4.14
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Elevate your aquarium’s green game with precision iron power!

## Quick Answers

- **What is this?** Brightwell Aquatics Ferrion Brightwell 250ml 385g by brightwell aquatics
- **How much does it cost?** € 4.14 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/89982180-brightwell-aquatics-ferrion-brightwell-250ml-385g)

## 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

- • **Precision Dosing Formula:** Easily maintain optimal iron levels with exact 5 ml per 189 L increments
- • **Massive Coverage Capacity:** One 250 ml bottle treats nearly 1000 liters of aquarium water
- • **Ultra-Concentrated Iron Boost:** Delivers 4000 ppm chelated iron for vibrant aquatic plant growth
- • **Stable & Reliable Conditioning:** Consistent iron supplementation ensures balanced aquarium ecosystems
- • **Supports Photosynthetic Health:** Enhances electron transport in chloroplasts for thriving photosynthetic organisms

## Overview

Brightwell Aquatics Ferrion is a highly concentrated liquid iron supplement designed to optimize photosynthesis in aquariums by delivering 4000 ppm chelated iron. Each 250 ml bottle treats up to 946 liters, allowing precise dosing to maintain iron levels between 0.05 and 0.10 ppm, essential for healthy algae and invertebrates. This stable formula supports vibrant aquatic plant growth and balanced ecosystems, making it a must-have for serious aquarium enthusiasts.

## Description

Very concentrated and stable solution of.iron to supplement aquariums. with.photosynthetic organisms containing.zooxanthelas.Photosynthesis is carried out in the.chloroplasts, and iron is used in.the electron transport chain.inside chloroplasts, so it isnecessary for photosynthetic organisms.to stay healthy and grow. Ferrion.brings the necessary iron to our.aquarium so that algae e. invertebrates.photosynthetics can. perform photosynthesis.correctly.How to use: Shake the product well before use.Add 5 ml of product per each.189 l of aquarium water every two.days or as needed to.maintain the concentration of.iron within a range of 0.05.to 0.10 ppm. Used in this way. 250 ml treats up to 946 L. Each ml of FERRION will increase the iron concentration ([Fe3+]") of 3,785 L of water by 1 ppm. It is advisable to ensure that the.phosphate concentration does not exceed.0.05 ppm in.the aquarium to be.dosed with a supplement of.iron. If the initial [Fe3+] in the.aquarium is less than.10 ppm, add at most 10 ml per.75 L daily until reaching the.desired concentration, then dose daily or weekly as necessary. Always try to keep the [Fe3+] within a.range of +/- 0.02 ppm.Chalked analysis: 0-0-0.Iron (Fe) (min) 0.40% Iron.chelated (118 mg / oz, 4,000.ppm).Ingredients: Distilled Water, Sodium Feredetate."

## Features

- Keep your aquarium in perfect condition.
- High Quality Conditioners
- Aquarium Conditioners

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Pet Type | Fische |
| Product Dimensions | 2.54 x 2.54 x 2.54 cm; 272.16 g |
| Item model number | FER250 |
| Item Form | Liquid |
| Volume | 1 |
| Number of Items | 1 |
| Quantity | 1 |
| Batteries required | No |
| Batteries Included | No |
| Item Weight | 272 g |

## Product Details

- **Brand:** Brightwell Aquatics
- **Liquid volume:** 8 Fluid Ounces
- **Item weight:** 0.6 Pounds
- **Item form:** Liquid
- **Manufacturer:** Brightwell Aquatics

## Images

![Brightwell Aquatics Ferrion Brightwell 250ml 385g - Image 1](https://m.media-amazon.com/images/I/610pMjcIsBL.jpg)
![Brightwell Aquatics Ferrion Brightwell 250ml 385g - Image 2](https://m.media-amazon.com/images/I/81Kdj-Rf2FL.jpg)
![Brightwell Aquatics Ferrion Brightwell 250ml 385g - Image 3](https://m.media-amazon.com/images/I/81x26sOc1KL.jpg)
![Brightwell Aquatics Ferrion Brightwell 250ml 385g - Image 4](https://m.media-amazon.com/images/I/81qol+j6jyL.jpg)
![Brightwell Aquatics Ferrion Brightwell 250ml 385g - Image 5](https://m.media-amazon.com/images/I/81+90eBmwPL.jpg)

## 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

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-21*