Seachem - Matrix Size:500ml For use in ornamental ponds

For use in ornamental ponds with fish

chest and back area

Additional adjustment of the air flow and bubble effect using the diffusor

If your dog struggles with itchy skin

Seachem - Matrix Size:500ml For use in ornamental pondsSeachem Matrix Seachem 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