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Seachem Matrix Bio Media 1 Liter
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Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
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Brand | Seachem |
Liquid Volume | 1 Liters |
Item Weight | 1.67 Pounds |
Item Form | Liquid |
Target Species | Fish |
About this item
- Made in United States
- Package Dimensions : 3.75 L x 8.0 H x 3.75 W (inches)
- Package Weight : 2.0 pounds
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Price | -26% $19.25$19.25 List: $25.95 | $8.99$8.99 | $22.99$22.99 | $7.99$7.99 | -63% $6.66$6.66 List: $17.96 | -38% $18.49$18.49 List: $29.99 |
Delivery | Get it as soon as Sunday, Mar 31 | Get it as soon as Sunday, Mar 31 | Get it as soon as Sunday, Mar 31 | Get it as soon as Sunday, Mar 31 | Get it as soon as Sunday, Mar 31 | Get it as soon as Sunday, Mar 31 |
Customer Ratings | ||||||
Value for money | 4.5 | — | 4.2 | 4.4 | 4.4 | 4.6 |
Easy to use | 4.8 | — | 4.6 | — | 4.9 | 4.8 |
Stability | 4.8 | — | — | 5.0 | 4.6 | 4.8 |
Sold By | Amazon.com | One Way Pet | Amazon.com | Amazon.com | Amazon.com | Asavvysavers |
target species | Fish | Fish | Fish | Fish | Fish | Fish |
liquid volume | 1 liters | 160 milliliters | 5 liters | 250 milliliters | 250 milliliters | 500 milliliters |
form | Liquid | Liquid | Pellets | Liquid | Stick | Liquid |
weight | 1.67 pounds | 4.16 ounces | 2.84 kilograms | 12 ounces | 8 ounces | 0.61 kilograms |
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Product details
- Is Discontinued By Manufacturer : No
- Product Dimensions : 7.9 x 3.7 x 3.7 inches; 1.67 Pounds
- Item model number : 117
- Department : Unisex-Adult
- Date First Available : April 14, 2008
- Manufacturer : Seachem Laboratories, Inc.
- ASIN : B0002A5VIO
- Country of Origin : USA
- Best Sellers Rank: #21,807 in Pet Supplies (See Top 100 in Pet Supplies)
- #244 in Aquarium Filter Accessories
- Customer Reviews:
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Videos
Videos for this product
1:09
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Why You NEED Seachem Matrix for your Aquarium!
Sydney's Angels
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2:18
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SeaChem Matrix! High Capacity Filter Media! #Fish
Trevor Norris
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Review After 2 Years Of Use - Seachem Matrix
Sharfaa Kassiem Puma
Product Description
Matrix is a highly porous media designed to provide exceptionally efficient bio filtration for single site removal of ammonia, nitrite, and nitrate from freshwater, marine, and reef aquaria. Each liter of matrix provides over 160,000 cm2 (170 sq. Ft.) of surface, equivalent to over 40 L (10 gallons) of typical plastic ball media! this product is sold by volume. Cited weight is minimal weight. Matrix is a naturally mined, chemically inert material for facilitating the growth of biological filtration in aquarium and pond systems. Due to its organic nature - size, shape, coloration, and density of the matrix material will vary slightly between packages. Any of These variants and small irregularities in sizing are perfectly natural and will not affect the integrity of the product or its ability to maintain water quality. It will also not affect pH in the system.
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the quality, filter, nitrates, and bacteria of the aquarium pond water treatment product. They mention that it's great for building your biological filter, and that it really gets rid of nitsrates. They also appreciate the clarity, ease of cleaning, and space. Overall, customers are happy with the product and recommend it to others.
AI-generated from the text of customer reviews
Customers are satisfied with the quality of the aquarium pond water treatment product. They mention that it works well, has good results, and is a reliable performer as a bio media. Some say that it's better than cylinder shape products.
"...That is ok by me because it has been a reliable performer as a bio media and final mechanical protectant for the last trays of Biohome, which has..." Read more
"...you just bought a bottle of expensive grey pebbles, but this shit is actually awesome...." Read more
"...This is the first product I have found that actually does. And it is cheap...." Read more
"...filter floss and my water is not only crystal clear, but also perfect paramaters. My ph is always around 7-7.5 0 nitrates and nitrates and 0 ammonia!..." Read more
Customers are satisfied with the filter. They mention that it's the best biological filter medium they've used, it'll build your aquarium filter, and it'd be great inside a canister filter. Customers also say that it does excellent work on a bio filter and keeps the water crystal clear.
"...I couldnt ask for a better, low maintenance aquarium! I use this on a 29 gallon angelfish tank as well as a 60 gallon community tank." Read more
"This is great for the fish tank." Read more
"Best filtration media bar none. I have been in the hobby for 30 years and I've tried it all...." Read more
"...It did excellent work on bio filter and keep the water crystal clear , I have noticed the Nitrates is almost 0 since I started using the product..." Read more
Customers like the nitrates in their aquarium or pond. They say the product really gets rid of nits, keeps ammonia and nirite at 2 ppm, and has never seen any issue with natrates. Some say that the product works great in a reactor and is better for reducing ntrates there.
"...bacteria for a week and finally had a full cycle and now no detectable ammonia or nitrite!!..." Read more
"These works great at removing ammonia and nitrite...." Read more
"...It keeps ammonia and nitrite at 2 if used as recommended...." Read more
"...filter and keep the water crystal clear , I have noticed the Nitrates is almost 0 since I started using the product..." Read more
Customers are satisfied with the bio media. They mention it's a great product for biofiltration, superior, and excellent for bio filtration. The center of each piece is perfect for creating an anerobic environment for bacteria to colonize, and it helps make tanks healthier.
"...The holes closer to the center of each piece are perfect for creating an anerobic environment for bacteria to colonize and digest nitrates...." Read more
"Seachem Matrix is a great natural medium for colonizing both nitrifying and denitrifying bacteria so important for good water chemistry and the..." Read more
"Large bottle enough for least 6 months, this media is great and transformed my tank that I had let get away from me...." Read more
"...Great product and it really helped give my tank the bio boost that it needed to keep Ammonia and Nitrites at 0 ppm...." Read more
Customers find the product to be a great product for bacteria growth and nitrate reduction. They say it holds beneficial bacteria better than any other product, and helps create surface area for beneficial bacteria production. Customers also say the product supports anerobic and aerobic bacteria, and that it grows rapidly on it.
"...each piece, which are where the majority are located, are perfect for aerobic bacteria that consume ammonia and nitrites...." Read more
"...I've been using it for about a year now and it's really helped grow the bacteria needed to keep his water level stable and healthy...." Read more
"...This is a very good product, the bacteria grows rapidly on it and it is the only thing I use on my 120 gallon as far as bio media...." Read more
"...Much more surface area for beneficial bacteria than ceramic bio rings or plastic bio balls." Read more
Customers like the clarity of the aquarium pond water treatment. They say it clears cloudy water and removes ammonia. Some customers also mention that the water looks incredible and is crystal clear.
"...I went to bed and in the morning the water was crystal clear. Its been 3 days and still crystal clear-from the front and crystal clear from the side...." Read more
"...ammonia was.5 my nitrites were .25.My water was cloudy and it is crystal clear" Read more
"...I now use this, purigen and filter floss and my water is not only crystal clear, but also perfect paramaters...." Read more
"...These makes water crystal clear. Make sure to test your water every 2-4 weeks to make sure your water parameters are good...." Read more
Customers find the filter material easy to clean. They say it keeps their tank water super clean and can be rinsed off and reused forever. Some customers also mention that the filter medium can be used once a year.
"...all HOB filters in overstocked tanks. keeps water clean and safe" Read more
"It's pumice stones but clean and works as well as other bio media...." Read more
"...In conjunction with Purigen, my tank is clear, clean, and beautiful ... I clean it about once a month or so...." Read more
"...decent rinse before you add this to your set up...they are pretty dusty out of the bottle, so a very quick rinse will clean that up!..." Read more
Customers like the space provided by the aquarium pond water treatment product. They mention that the Matrix provides a tremendous amount of surface area, the 1L jug can easily fill an entire media tray on its own, and the bio media was a good size. They also say there's a decent amount of different sizes, which provides plenty of room for bacteria to hang out. Overall, customers are happy with the space and recommend it to others.
"...All this results in better water quality is more capacity for livestock. Don't buy another brand of bio media, as it will be subpar to Matrix." Read more
"...Now for the actual use. Matrix provides a tremendous amount of surface area...." Read more
"...They're wonderfully absorbent and have plenty of surface area...." Read more
"...There's not enough room without doing some serious shuffling around of the media. I know it works for the canister filter." Read more
Reviews with images
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Top reviews
Top reviews from the United States
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It is natural rock so there was a few rocks that I not look like they had pours in the rock so decided to toss them out. Just the lid’s worth of cast off. Surprised that their quality control is so lax that that many black rocks would get through in a white product.
Since I am replacing bio media already in an established tank I’m doing it 1/4 at a time. So every week and a half I am doing doing another 1/4th so that the existing bio media is not wiped out in a huge swap.
Reviewed in the United States on November 26, 2020
It is natural rock so there was a few rocks that I not look like they had pours in the rock so decided to toss them out. Just the lid’s worth of cast off. Surprised that their quality control is so lax that that many black rocks would get through in a white product.
Since I am replacing bio media already in an established tank I’m doing it 1/4 at a time. So every week and a half I am doing doing another 1/4th so that the existing bio media is not wiped out in a huge swap.
The only issues I have are 1. There is at least half of this that is very dense like a rock. It is not all porous. That is not a deal breaker because I want bacteria growing in different ways and hopefully I will attract different types. 2. This really does need a bag to hold it. It will work in the cannister but the smaller pieces move and get wedged under the tray handles preventing it all from stacking correctly. I fit this into two media bags and this just makes it easier to clean but you will need to purchase a bag.
Overall, based on reputation alone this is worth having in a tray. There is enough porous rock to justify the cost and now I have a nice diverse set of media in my filter working 24 hours a day.
I noticed many users have complained about receiving an adulterated product, and frankly I thought I had received one as well. I called Seachem and got the scoop. Here's what I found out:
Matrix is a natural, mined product. The mineral has natural variations in size and color. When mined, black Obsidian is sometimes included in the take. The Obsidian is removed by hand before packaging, but some slips into the container from time to time.
The packaging does not have a tamper-proof seal beneath the lid. When you open the jar, you immediately see the product.
Matrix is sold by volume and not by weight. A minimum weight is listed in the literature (e.g.: 1 liter of Matrix = 400 gram net weight) but this is required by law, and has nothing to do with the actual weight of the product, which can vary greatly due to Matrix absorbing moisture from the air, for example. The 1 liter of Matrix I received weighted 967 grams out of the jar.
When you receive Matrix, expect it to vary in color, size, and that there may be a few dark or black rocks in the jar.
Now for the actual use. Matrix provides a tremendous amount of surface area. The outer surfaces and crevices provide a very hospitable environment for the aerobic (oxygen consuming) nitrifying bacteria that make up the 'bio filter' so critical to breaking down Ammonia to Nitrite, and Nitrite to Nitrate.
It's benefit doesn't stop there. At the end of the aerobic portion of the Nitrogen Cycle, nitrate is left to build up in the water column, and is one of the major pollutants that dictate the frequency and quantity of water changes. Nitrate can be reduced to Nitrogen gas - but this is an anaerobic (oxygen deprived) process requiring another type of bacteria. Nitrate laden water seeps into the core of Matrix after having been stripped of oxygen by the aerobic bacteria on the medium's surface. This oxygen-poor environment is perfect for colonizing anaerobic bacteria that consume Nitrate and release inert Nitrogen gas.
This final step in the Nitrogen Cycle helps control the buildup of Nitrate in the aquarium, contributing markedly to the long term health of it's inhabitants.
Reviewed in the United States on July 7, 2023