Seachem Matrix Bio Media 250ml

Works as advertised. Would recommend it.

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.

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.

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!!!!

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

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.

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

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

Does what its suppose too no complaints here.

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.