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.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Seachem Matrix Bio Media 1 Liter

Product ID: 2271706

Details

Brand
Seachem
Item Form
Solid
Item Weight
1.7 pounds
Liquid Volume
1 liters
Number of Packs
1

🧬High surface area for bacteria colonization

♻️Supports full nitrogen cycle (aerobic + anaerobic)

🇺🇸Proudly made in the USA

MX$1123

Duties & taxes included

In stock

Sold byAmazon MexicoDelivered 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 Mexico.

Secure transaction

Description

♻️ Transform your aquarium’s ecosystem with nature’s ultimate bio filter!

TRUSTED QUALITY - Hand-checked and USA-made for consistent aquarium health
BIOFILM POWERHOUSE - Maximizes beneficial bacteria growth for crystal-clear water
DUAL ACTION FILTRATION - Aerobic and anaerobic bacteria work in harmony to eliminate toxins
NITRATE REDUCTION CHAMPION - Effectively reduces harmful nitrate buildup, extending water change intervals
NATURAL MINERAL COMPOSITION - Authentic mined media with unique natural variations

Seachem Matrix Bio Media is a premium, natural filtration medium designed to foster both aerobic and anaerobic bacteria essential for maintaining optimal aquarium water chemistry. Made in the USA, this 1-liter media offers a vast surface area that supports the full nitrogen cycle, reducing ammonia, nitrite, and nitrate levels to promote a healthier aquatic environment. Its unique mineral composition may vary naturally, ensuring an authentic and effective biofiltration experience.

Specifications

ASIN	B0002A5VIO
ASIN	B0002A5VIO
Allergen Information	Gluten Free
Best Sellers Rank	#23,431 in Pet Supplies ( See Top 100 in Pet Supplies ) #201 in Aquarium Filter Accessories
Brand Name	Seachem
Customer Reviews	4.8 4.8 out of 5 stars (3,011)
Date First Available	April 14, 2008
Department	Unisex-Adult
Global Trade Identification Number	00000116011709
Included Components	all
Item Form	Solid
Item Type Name	Aquarium Filtration Media
Item Weight	1.7 pounds
Item model number	117
Liquid Volume	1 liters
Manufacturer	Seachem Laboratories, Inc.
Manufacturer	Seachem Laboratories, Inc.
Manufacturer Part Number	117
Model Number	117
Pet Type	Fish
Product Dimensions	7.9 x 3.7 x 3.7 inches; 1.67 pounds
Target Species	Fish
UPC	000116011709 716184580831
Unit Count	1 Pounds
Warranty Description	Warranty

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.