Seachem Matrix – High-Porosity Biological Filter Media for Aquariums & Ponds Size:500ml The material color (smoky gray)

The material color (smoky gray) is effective against algae settlement

and promote healthy plant growth

The material is easy to maintain and can be hand washed or gently machine washed to keep it looking bright and fresh

and nano fish

Once the pond is full

Seachem Matrix – High-Porosity Biological Filter Media for Aquariums & Ponds Size:500ml The material color (smoky gray)Boost your aquariums biological filtration with Seachem Matrix a premium, high porosity biomedia developed to support beneficial bacteria colonies that convert ammonia, nitrite and nitrate into less harmful molecules. Engineered for both freshwater and marine systems, Matrix features a porous inorganic structure (~10 mm granules) which gives each liter of media over ~700 m of surface area. This internal macroporosity means bacteria can colonise both