Seachem Matrix Bio Media 250ml

(642 Reviews)

Price
$5.24

Quantity
(10000 available )

Total Price
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108 Ratings
75
16
10
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7
Reviews
  • Lesha

    > 3 day

    Works as advertised. Would recommend it.

  • Trevor Hiller

    > 3 day

    I purchased this for my saltwater fish quarantine tank to have some biological media that wont absorb medications if/when I need to dose them. This is one of the few products that wont absorb copper and is recommended for use in Saltwater quarantine systems. Would buy again.

  • Alan Key Martinez Barragan

    > 3 day

    I had ceramic beads before but these things seem to work faster than the beads. Test results changed in just 1 week on my aquarium.

  • William Buckley

    09-06-2025

    I’ve always had an issue with high nitrates in my tank despite frequent water changes. I tried infused media pads but they never worked so I figured I would try MATRIX. I’m glad I did! Got my nitrates down from 80 to 20 in just under 2 weeks and still falling. I’m happy this works!!!!

  • Mark D. Cronce

    Greater than one week

    so far so good, just installed in my nano bio cube

  • Cory Windler

    > 3 day

    I used to think that my tank water was crystal clear but after using matrix, its like another dimension. My tank has never been this clear, ever. Its like looking through the glass with no water in there! I only wish I used this sooner. All Seachem products are awesome.

  • Candido Kuhn

    > 3 day

    I used since longtime looks like doing nothing. waste of time money and space in filter.

  • M W

    > 3 day

    In my opinion, this product was money down the drain!

  • Hiram

    > 3 day

    Does what its suppose too no complaints here.

  • Mark Smith

    > 3 day

    Trying to keep my goldfish tank crystal clear has been a challenge in my slightly overstocked tank dispite keeping NO3 and NO2 on the high side of normal. I have been doing full water changes every month and have tried variety of filtration medias and charcoal products. I decided to try this in my Tetra HOB fiter. I placed the rocks in the open spaces of the plastic bio filter. You could see it improving the water clarity day by day until the water was clear.

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.

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