{"product_id":"seachem-matrix-1l","title":"Matrix 1 L — Biomedia 700 m²\/L Nitrification and Denitrification | Seachem","description":"\u003cp\u003e Seachem Matrix 1 L is a high-porosity biomedia designed for efficient biofiltration and nitrogen removal in marine and freshwater aquariums. This 10 mm diameter porous inorganic solid provides a surface area of ​​over 700 m² per liter—the equivalent of 170 liters of plastic beads. Unlike plastic biomaterials that offer only an external surface, Matrix provides an internal and external macroporous surface whose pores simultaneously support nitrifying and denitrifying bacteria. The 1 L format treats up to 800 L (200 US gallons) of water, making it suitable for medium-sized reef aquariums.\u003c\/p\u003e\n\n\n\u003ch2\u003e Main advantages\u003c\/h2\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e Surface area of ​​over 700 m² per liter — equivalent to 170 liters of plastic pellets\u003c\/li\u003e\n\n\u003cli\u003e Internal and external macroporous surface — supports nitrifying AND denitrifying bacteria\u003c\/li\u003e\n\n \u003cli\u003eSimultaneously removes ammonia, nitrites AND nitrates in the same filter\u003c\/li\u003e\n\n\u003cli\u003e Completely inert — does not degrade, never needs to be replaced\u003c\/li\u003e\n\n\u003cli\u003e Rinseable without damaging bacteria — the majority are lodged inside the pores\u003c\/li\u003e\n\n\u003cli\u003e 1 L format — treats up to 800 L (200 US gallons)\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003ch2\u003e Use in reef and marine aquariums\u003c\/h2\u003e\n\n\u003cp\u003e Matrix is ​​unique among biomedia because its macropores support both aerobic bacteria (which remove ammonia and nitrites) and anaerobic bacteria (which reduce nitrates). This dual action allows for complete biofiltration in a single filter. Seachem recommends placing the biological media last in the filtration order: first mechanical filtration (foams, filter floss), then chemical filtration (MatrixCarbon, Purigen, PhosGuard), and finally biological filtration (Matrix). It does not affect the aquarium's pH.\u003c\/p\u003e\n\n\n\u003ch2\u003e Instructions for use\u003c\/h2\u003e\n\n\u003cul\u003e\n\n \u003cli\u003e250 ml of Matrix per 200 L (50 US gallons) of water — the 1 L format treats up to 800 L\u003c\/li\u003e\n\n\u003cli\u003e Rinse before use\u003c\/li\u003e\n\n\u003cli\u003e Place in a cartridge filter, media reactor, box filter, or any high-flow area of ​​the sump\u003c\/li\u003e\n\n\u003cli\u003e Large enough that a filter bag is not required in most applications\u003c\/li\u003e\n\n\u003cli\u003e Particularly effective in a canister filter\u003c\/li\u003e\n\n\u003cli\u003e Use with Seachem Stability to establish the biofilter more quickly\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003ch2\u003e Interview\u003c\/h2\u003e\n\n\u003cp\u003e The Matrix filter does not wear out and never needs replacing. However, it can become clogged with debris and biofilm. Seachem recommends regular filter maintenance—about once a month as a starting point. Since the majority of bacteria are inside the pores, the Matrix can be rinsed to remove debris without damaging the biofilter.\u003c\/p\u003e\n\n\n\u003ch2\u003e Matrix vs de*nitrate\u003c\/h2\u003e\n\n \u003cp\u003eIf Matrix keeps your nitrate levels stable but doesn't lower them, increase the amount of Matrix or add Seachem de*nitrate, which removes nitrates more effectively per unit volume at a flow rate not exceeding 200 L\/h. For higher flow rates, Matrix supports anaerobic denitrification more effectively. The necessary anaerobic bacteria generally take a few weeks to develop.\u003c\/p\u003e\n\n\n\u003ch2\u003e Manufacturer's precautions\u003c\/h2\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e Does not affect pH\u003c\/li\u003e\n\n\u003cli\u003e Completely inert — does not degrade\u003c\/li\u003e\n\n\u003cli\u003e Compatible with all types of wet or wet-dry filters\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003ch2\u003e Available formats\u003c\/h2\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e 250 ml\u003c\/li\u003e\n\n\u003cli\u003e 500 ml\u003c\/li\u003e\n\n\u003cli\u003e 1 L\u003c\/li\u003e\n\n\u003cli\u003e 2 L\u003c\/li\u003e\n\n\u003cli\u003e 4 L\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003ch2\u003e Why choose the Matrix at ReefSolution?\u003c\/h2\u003e\n\n \u003cp\u003eThe 1L format is the versatile choice for medium-sized reef aquariums handling up to 800L. To quickly establish the biofilter, combine Matrix with Seachem Stability. Complete your chemical filtration with Seachem Purigen for nitrogenous organics and Seachem MatrixCarbon for organic compounds and colorants.\u003c\/p\u003e\n\n\n\u003ch2\u003e Frequently Asked Questions\u003c\/h2\u003e\n\n\n\u003ch3\u003e How many Matrix tablets do I need for my aquarium?\u003c\/h3\u003e\n\n\u003cp\u003e 250 ml per 200 L (50 US gallons) of water. The 1 L size is sufficient for aquariums up to 800 L. For larger reef systems, 2 L and 4 L sizes are available.\u003c\/p\u003e\n\n\n\u003ch3\u003e How long does it take for Matrix to eliminate nitrates?\u003c\/h3\u003e\n\n\u003cp\u003e Aerobic nitrifying bacteria develop within a few days. Anaerobic denitrifying bacteria generally require a few weeks to colonize the internal pores of the Matrix. Use Seachem Stability to accelerate bacterial colonization.\u003c\/p\u003e\n\n\n\u003ch3\u003e Can Matrix be rinsed off without losing the bacteria?\u003c\/h3\u003e\n\n \u003cp\u003eYes. The majority of beneficial bacteria reside inside the macropores, protected from rinsing. Rinse with aquarium water (not chlorinated tap water) to remove debris without disturbing the biofilter.\u003c\/p\u003e","brand":"Seachem","offers":[{"title":"Default Title","offer_id":38010193477803,"sku":"000116011709","price":19.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0513\/7108\/1899\/files\/seachem-matrix-1000-ml.jpg?v=1773617856","url":"https:\/\/reefsolution.com\/en\/products\/seachem-matrix-1l","provider":"Aquarium ReefSolution inc.","version":"1.0","type":"link"}