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 Matrix High Capacity Bio Filtration for Fish, 117, 75388, 1 LITER

Product ID: 256598943

Details

Brand
Seachem
Item form
Solid
Item weight
1.67 Pounds
Liquid volume
1 Liters
Number of Packs
1

🦠Supports nitrifying & denitrifying bacteria

🧬700 m² bio-surface area

♻️Never needs replacement

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Description

♻️ Elevate your aquarium’s ecosystem with biofiltration that never quits!

LIFETIME DURABILITY - Inert, never breaks down, and requires zero replacement—set it and forget it
UNIVERSAL COMPATIBILITY - Works seamlessly with all wet and wet-dry aquarium filters for effortless integration
BACTERIA FRIENDLY DESIGN - Internal macropores perfectly sized to nurture beneficial bacteria colonies
DUAL ACTION NITRATE REMOVAL - Simultaneously eliminates ammonia, nitrite, and nitrate for crystal-clear water
UNMATCHED BIOFILTRATION POWER - 700 m² of porous surface per liter—outperforming plastic media by 170x

Seachem Matrix is a revolutionary high-capacity biofiltration media offering over 700 m² of porous surface area per liter, supporting both nitrifying and denitrifying bacteria. Its inert, durable design means it never needs replacement, ensuring efficient removal of ammonia, nitrite, and nitrate simultaneously. Compatible with all filter types, Matrix guarantees superior water quality and a healthier aquatic environment.

Specifications

ASIN	B0002A5VIO
Allergen Information	Gluten Free
Brand Name	Seachem
Country of Publication	USA
Customer Reviews	4.8 4.8 out of 5 stars (4,196)
Global Trade Identification Number	00000116011709
Included Components	all
Item Form	Solid
Item Type Name	Seachem Matrix Bio Media 1 Liter
Item Weight	1.67 Pounds
Liquid Volume	1 Liters
Manufacturer	Seachem Laboratories, Inc.
Manufacturer Part Number	117
Model Number	117
Number of Items	1
Number of Packs	1
Pet Type	Fish
Target Species	Fish
UPC	000116011709 716184580831
Unit Count	1 Count

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₨712

Duties & taxes included

In stock

Sold byAmazon SeychellesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Seychelles.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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