Is this stuff the same as pumice?

As Matthew M suggested, I looked at the data sheet. 100% pumice by weight. The data sheet gives a Chemical Abstracts Service number (CAS#) for it, and that is 1332-09-8. Google that number.

do you need to keep this in a bag or in the tray in my cascade canister filter?

It can be placed in your tray. it is loose. Might want to make sure you use a tray for the canister that has the lid on it.

Does it work the same way as the ceramic bio rings?

A million times better. The ceramic rings are trash. This has a lot more surface area because of the small cavaties in each piece. This stuff is fantastic for your bacteria.

I have a Magnum 350 filter which has a canister that has charcoal on the inside and a foam sleeve outside. Do I use this to replace the charcoal?

No, charcoal is a chemical filter. Matrix is a biological filter.If you did not need chemical filtering in your system, you could repurpose the Magnum 350 as a bio-filter by replacing the carbon with Matrix. This would help control ammonia/nitrites/nitrates at the expense of controlling organic pollutants.

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seachem マトリックス 1L

Product ID: 743661515

Details

Brand
seachem
Liquid Volume
1 Liters
Item Weight
757 g
Item Form
Liquid
Manufacturer
seachem

🌊Optimized for salt & freshwater

🧩160,000+ cm² surface area

⚙️High-density porous structure

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$112.77

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Description

🧬 Elevate your aquarium’s ecosystem with next-level biofiltration!

COMPACT YET MIGHTY - 1L volume packed into a sleek 3.5 x 7.9 x 3.5 inch form factor—powerful filtration without bulk.
DUAL ENVIRONMENT MASTERY - Engineered to thrive in both saltwater and freshwater aquariums, ensuring versatile water quality management.
EFFORTLESS AQUARIUM UPGRADE - Lightweight (2.8 lbs) and easy to integrate, transforming your tank’s ecosystem with minimal hassle.
MAXIMIZED BIOFILTRATION POWER - Harnesses a surface area over 160,000 cm²—48x more than standard filters for superior ammonia and nitrate control.
POROUS DESIGN FOR BACTERIA COLONIZATION - Internal porous network creates the perfect habitat for nitrifying and denitrifying bacteria, boosting biological filtration.

Seachem Matrix 1L is a high-density porous filtration media designed to dramatically enhance biological filtration in both saltwater and freshwater aquariums. With an expansive surface area exceeding 160,000 cm², it supports robust colonies of beneficial bacteria that efficiently process ammonia, nitrites, and nitrates, ensuring crystal-clear, healthy water for your aquatic life.

Specifications

Pet Type	Tropical and Aquarium Fish
Item model number	117
Is Discontinued By Manufacturer	No
Item Form	Liquid
Color	RFA11971
Size	1L
Volume	1 Liters
Number of items	1
batteries required	No
Batteries Included	No
External Testing Certification	Não aplicável

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