---
product_id: 369566421
title: "TL Reefs GFO Phosphate Remover, Granular Ferric Oxide, for Saltwater Aquariums (2lbs)"
brand: "tl reefs"
price: "€ 153.78"
currency: EUR
in_stock: true
reviews_count: 5
category: "Tl Reefs"
url: https://www.desertcart.fi/products/369566421-tl-reefs-gfo-phosphate-remover-granular-ferric-oxide-for-saltwater
store_origin: FI
region: Finland
---

# Ideal for saltwater aquariums Permanently bonds phosphate Optimal flowrate prevents clumping TL Reefs GFO Phosphate Remover, Granular Ferric Oxide, for Saltwater Aquariums (2lbs)

**Brand:** tl reefs
**Price:** € 153.78
**Availability:** ✅ In Stock

## Summary

> 🌟 Keep your reef thriving with phosphate-free perfection!

## Quick Answers

- **What is this?** TL Reefs GFO Phosphate Remover, Granular Ferric Oxide, for Saltwater Aquariums (2lbs) by tl reefs
- **How much does it cost?** € 153.78 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/369566421-tl-reefs-gfo-phosphate-remover-granular-ferric-oxide-for-saltwater)

## Best For

- tl reefs enthusiasts

## Why This Product

- Trusted tl reefs brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Phosphate Lockdown:** Permanently traps phosphates to keep your water crystal clear and algae-free
- • **Trusted by Aquarists:** Highly rated and preferred by professionals for consistent, reliable phosphate removal
- • **Proactive Maintenance:** Monitor phosphate levels and replace media before performance dips to maintain peak water quality
- • **Versatile Application:** Use in reactors or media bags placed in high-flow sump areas for flexible setup
- • **Flow-Optimized Performance:** Designed for fluidized reactors with gentle tumbling to maximize efficiency and prevent clumping

## Overview

TL Reefs GFO Phosphate Remover is a granular ferric oxide media designed specifically for saltwater aquariums. It permanently bonds phosphate molecules, preventing leaching back into the water, and is best used in fluidized reactors or media bags in high-flow areas. This 2lb pack supports maintaining low phosphate levels, essential for healthy reef ecosystems, with easy monitoring and replacement guidelines.

## Description

Granular Ferric Oxide is a popular means of reducing and maintaining low phosphate levels in your aquarium. There are many sources of phosphates in your aquarium. They can come from your base rock, fish food, or any other organic matter that enters the tank. GFO removes phosphate by molecular bond and will not leach them back into your water when exhausted. The most popular and effective implementation method is with the use of a fluidized reactor. Use a flowrate through the reactor just strong enough to keep it gently tumbling. This will help prevent clumping and channeling of your GFO media. The other method of use is by filling a media bag, and placing in a high flow area of your sump, or filter compartment.

Review: My “go-to” provider for all my media.
Review: I rinsed the product out, or so I thought. After placing it within my reactor it made more dust, and more until I had to shut off, rinse again and put fine micron bag filters to eliminate the dust. Skimmer was working overtime. Rinsed again, still dust, and I’m talking about enough dust that you couldn’t see the other side of a 24” deep tank. Tank is a mess. I’m talking a ton of dust so I think the GFO is more or less being dissolved or pulverized, this isn’t just dust from settling in shipment - no way.

## Features

- Permanently bonds phosphate and will not leach back into aquarium water
- Rinse before use. Use 1/2 cup per 50 gallons of aquarium water
- Monitor phosphate levels and replace when levels begin to rise

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0773Q8BS4 |
| Batteries Included | No |
| Customer Reviews | 4.3 4.3 out of 5 stars (61) |
| Date First Available | 7 July 2018 |
| Item Form | Granules |
| Item Weight | 900 g |
| Item model number | 43237-2 |
| Package Dimensions | 27 x 20.6 x 5.69 cm; 900 g |
| Quantity | 1 |
| Size | 2lbs |
| batteries required | No |

## Product Details

- **Brand:** TL Reefs
- **Item form:** Granules
- **Item weight:** 0.9 Kilograms
- **Liquid volume:** 50 Gallons
- **Manufacturer:** TL Reefs

## Images

![TL Reefs GFO Phosphate Remover, Granular Ferric Oxide, for Saltwater Aquariums (2lbs) - Image 1](https://m.media-amazon.com/images/I/91jUavHPtML.jpg)

## Questions & Answers

**Q: Will this work in freshwater aquarium**
A: Yes, it will remove phosphate from freshwater.

**Q: How does this compare to the gfo from brs?**
A: Similar, looks the same. My Phosphates are at 0 so it is doing its job. I change it every three weeks so not sure about longevity, I think the BRS product only needs to be changed every 2 months, so that may be something to look into.

**Q: Can this be used in a fresh water tank with a sump?**
A: Yes, this will work in freshwater with a sump.  You will want to place the GFO in a mesh bag or media reactor, to keep it contained.

**Q: How often should you change the GFO out?**
A: Check your phosphate. When the phosphate goes up change it out. You want it to be low but not zero. You will get cyno blooms then.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***E on 22 March 2024*

My “go-to” provider for all my media.

### ⭐ Review
*by A***N on 1 July 2018*

I rinsed the product out, or so I thought. After placing it within my reactor it made more dust, and more until I had to shut off, rinse again and put fine micron bag filters to eliminate the dust. Skimmer was working overtime. Rinsed again, still dust, and I’m talking about enough dust that you couldn’t see the other side of a 24” deep tank. Tank is a mess. I’m talking a ton of dust so I think the GFO is more or less being dissolved or pulverized, this isn’t just dust from settling in shipment - no way.

### ⭐ Review
*by R***N on 10 December 2022*

Worst GFO I have ever used. Rinsed, rinsed and rinsed. Clouded my tank after rinsing for 1 hour. Caked up the sponge filters in my reactor. All my filter soaks clogged from dust. It just kept breaking down. Seems like a powder that is pressed to simulate a good quality GFO.

## Frequently Bought Together

- TL Reefs GFO Phosphate Remover, Granular Ferric Oxide, for Saltwater Aquariums (2lbs)
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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-16*