Seachem Laboratories Matrix Biological Media 500 mL

Healthy aquarium water depends on the helpful bacteria that quietly break down waste, and giving those bacteria a great home is what this media is all about. Seachem Laboratories Matrix is a high porosity biomedia offered here in a 500 ml size, designed to support efficient biofiltration for the removal of nitrogenous waste. It is a porous inorganic solid about 10 mm in diameter, made to do far more than the plastic balls many filters rely on.

• It is a high porosity biomedia that provides efficient biofiltration for the removal of nitrogenous waste, the kind that builds up in any stocked tank.
• Each liter of Matrix provides as much surface, more than about 700 square meters, as 170 liters of plastic balls, according to Seachem.
• It offers both external and internal macroporous surface area, while plastic bio-materials provide only external surface area.
• Its macropores are ideally sized for the support of nitrifying and denitrifying bacteria, the workhorses of a stable tank.
• Seachem says this lets Matrix remove nitrate along with ammonia and nitrite, simultaneously and in the same filter.
• That combined action sets it apart from other forms of biomedia, as the brand describes.
• Each porous piece is about 10 mm in diameter, an inorganic solid built to last in your filter.
• The 500 ml size suits smaller and mid-sized tanks, or a single filter chamber.
• It works within your existing filter wherever water flows over the media.
• It gives beneficial bacteria a generous place to colonize and thrive.

If you want your filter to do more of the heavy lifting on water quality, this 500 ml of Matrix offers a lot of bacterial real estate in a manageable amount. Place it in your filter, let the helpful bacteria settle in, and let the media support the cycle that keeps your fish comfortable. Every figure and benefit above comes directly from Seachem's own description, so you can build your biofiltration on facts, not guesswork, and keep your aquarium running the way you want it to.