SeaChem Matrix Bio-Media Granules 4 Liter Harnesses Aquarium: Gravel & Sand-Freshwater Estes

Aquarium: Gravel & Sand-Freshwater Estes has been America's number one manufacturer of aquarium aggregates for over forty years

The bottom of the bed has a layer of "stay put" non-slip fabric

InTune has encapsulated probiotics that ensure a higher amount of active and beneficial microorganisms

omega 3 & 6 fatty acids

digestible protein source

SeaChem Matrix Bio-Media Granules 4 Liter Harnesses Aquarium: Gravel & Sand-Freshwater EstesMatrix is a highly porous media designed to provide exceptionally efficient biofiltration for single site removal of ammonia, nitrite, and nitrate from freshwater, marine, and reef aquaria. Each liter of Matrix provides over 160,000 cm2 (170 sq. ft.) of surface, equivalent to over 40L (10 gallons) of typical plastic ball media! This product is sold by volume. Cited weight is minimal weight. DIRECTIONS: Use 1 L of Matrix for each 400 L (100 gallons*)