Seachem Matrix 2L / 67.6oz
Matrix is a high porosity biomedia that provides efficient biofiltration for the removal of nitrogenous waste. Matrix is a porous inorganic solid about 10 mm in diameter. Each liter of Matrix provides as much surface (>~700 m2) as 170 liters of plastic balls! Plastic bio-materials provide only external surface area, whereas Matrix provides both external and internal macroporous surface area. These macropores are ideally sized for the support of nitrifying and denitrifying bacteria. This allows Matrix, unlike other forms of biomedia, to remove nitrate along with ammonia and nitrite, simultaneously and in the same filter.
Sold in quantity of: 1
| Specification | Value |
|---|---|
| Volume | 2L / 67.6oz |
| Material | Inorganic porous solid |
| Particle Size | 10 mm diameter |
| Surface Area (per liter) | >700 m² |
| Function | Biofiltration, ammonia, nitrite, and nitrate removal |
FAQ
Can Matrix be used in both freshwater and saltwater aquariums?
Yes, Matrix is suitable for both freshwater and saltwater aquariums due to its effective biofiltration properties.
Does Matrix require any special preparation before use?
No special preparation is required. Simply add Matrix to your filter system and allow beneficial bacteria to colonize over time.
Is Matrix compatible with other types of filter media?
Yes, Matrix can be used in combination with other filter media for enhanced filtration performance.

Carolyn Harris –
I’ve used Matrix in my freshwater tank for three months now. The water quality has improved significantly. Nitrate levels dropped quickly, and the filter runs more efficiently. No clogging issues, and the media stays stable even after regular cleaning.
Dominic Watson –
The surface area is impressive. I noticed a noticeable reduction in ammonia spikes after installing Matrix. It works well with my sponge filter and doesn’t take up too much space.
Joshua Chapman –
Compared to plastic media, Matrix has been much more effective at removing nitrate. My tank has maintained stable parameters without needing frequent water changes.
Diana Hudson –
Easy to install and maintain. The media doesn’t break down easily, and the filter performs consistently even during heavy fish activity.