Will this work in freshwater aquarium

Yes, it will remove phosphate from freshwater.

How does this compare to the gfo from brs?

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.

Can this be used in a fresh water tank with a sump?

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.

How often should you change the GFO out?

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.

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GFO Phosphate Remover, Granular Ferric Oxide, for Saltwater Aquariums (2lbs)

Product ID: 369566421

Details

Brand
TL Reefs
Item form
Granules
Item weight
0.9 Kilograms
Liquid volume
50 Gallons
Unit count
946.35

🌊Ideal for saltwater aquariums

🧪Permanently bonds phosphate

⚙️Optimal flowrate prevents clumping

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Description

🌟 Keep your reef thriving with phosphate-free perfection!

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

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.

Specifications

ASIN	B0773Q8BS4
Brand Name	TL Reefs
Customer Reviews	4.2 4.2 out of 5 stars (258)
Item Form	Granules
Item Weight	0.9 Kilograms
Liquid Volume	50 Gallons
Manufacturer	TL Reefs
Manufacturer Part Number	43237-2
Model Number	43237-2
Pet Type	Fish
Target Species	Fish
UPC	600150909965
Unit Count	946.35 Milliliters

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