Where should I put this in a Fluval evo 13.5 gal tank? And is it good to mix with activated carbon in a same bag?

Thank you for your question! The media works well inside a fine mesh bag, well rinsed, anywhere there is decent water flow (like where you would place a carbon bag). This media can be mixed with the activated carbon in the same bag however, the GFO stays active longer than the carbon so that would be the only drawback. Please let us know if you have any other questions, we are happy to help.

It says it can be used in pools. Are there dosage recommendations on the package

It says 1 - 2 grams per gallon in a fine mesh bag. I use it in my 35 gallon saltwater tank but I'm not sure how much it would take in a pool.? The jar has 454 grams in it.

Can this be used in a reactor?

Hello, thank you for your question. This product can be mixed in reactor with carbon or used by itself. Please let us know if you have any further questions! The Kolar Labs Team

It's a really small particle GFO so you'll need to use a "very fine" mesh bag. Use an 1/8 to 1/4 cup for 30-40 gals. Rinse it and place the bag pretty much anywhere in your sump's flow/return. It works wonders with phosphates! Replace it every 4 to 6 weeks. I've also mixed it with activated carbon, mix about 1 part GMO to 2-3 parts carbon.

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GFO

Product ID: 41584250

Details

Brand
Kolar Labs
Item Form
Granules
Item Weight
1.1 pounds
Liquid Volume
1 gallons
Unit Count
1.1 Pounds

🌊Safe for freshwater & saltwater aquariums

⏱️Rapid phosphate removal performance

⚙️Ultra-pure virgin Bayoxide E33 granules

601434Fr

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Description

🌟 Clear Water, Thriving Reefs — Don’t Let Phosphates Crash Your Aquarium Party!

PREMIUM ULTRA PURE GFO - Experience crystal-clear water with high-grade Bayoxide E33 granules, engineered for maximum phosphate absorption.
TRUSTED GERMAN ENGINEERING - Manufactured by LANXESS under strict purity standards, ensuring consistent, long-lasting aquarium health.
FAST ACTING PHOSPHATE CONTROL - Slash phosphate levels quickly to prevent algae blooms and maintain vibrant aquatic life.
UNIVERSAL AQUARIUM COMPATIBILITY - Perfectly safe and effective in freshwater, saltwater, reef tanks, and ponds—one solution for all your aquatic ecosystems.
VERSATILE FILTRATION INTEGRATION - Seamlessly fits reactors, filter socks, canister filters, and cartridges for hassle-free maintenance.

Kolar Labs GFO Bayoxide E33 is a premium granular ferric oxide phosphate remover designed for both freshwater and saltwater aquariums. Manufactured in Germany by LANXESS, it offers rapid and long-lasting phosphate reduction, promoting clearer water and healthier aquatic life, including sensitive corals. Compatible with various filtration systems, it’s the go-to solution for professional-grade aquarium maintenance.

Specifications

ASIN	B06XB9WNS9
ASIN	B06XB9WNS9
Best Sellers Rank	#29,679 in Pet Supplies ( See Top 100 in Pet Supplies ) #257 in Aquarium Water Treatments
Brand Name	Kolar Labs
Customer Reviews	4.4 4.4 out of 5 stars (521)
Date First Available	February 20, 2017
Item Form	Granules
Item Weight	1.1 pounds
Item model number	9884232
Liquid Volume	1 gallons
Manufacturer	Kolar Labs
Manufacturer	Kolar Labs
Manufacturer Part Number	9884232
Model Number	9884232
Package Dimensions	5.87 x 3.86 x 3.74 inches; 1.1 pounds
Pet Type	Fish
Target Species	Fish
UPC	851794007078
Unit Count	1.1 Pounds

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