Seachem Matrix Bio Media and Purigen Organic Filtration Resin for Aquariums

Seachem Matrix, 4 L / 1 gal.Matrix is a highly porous media designed to provide exceptionally efficient bio filtration 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 40 L (10 gallons) of typical plastic ball media! this product is sold by volume. Cited weight is minimal weight. Matrix is a naturally mined, chemically inert material for facilitating the growth of biological filtration in aquarium and pond systems. Due to its organic nature - size, shape, coloration, and density of the matrix material will vary slightly between packages. Any of These variants and small irregularities in sizing are perfectly natural and will not affect the integrity of the product or its ability to maintain water quality. It will also not affect pH in the system.Seachem Purigen Organic Filtration Resin - Fresh and Saltwater 100 mlSeachem Purigen is not a mixture of ion exchangers or adsorbents, but a unique macro-porous synthetic polymer that removes soluble and insoluble impurities from water at an excelled rate and capacity.

• Includes Seachem Matrix premium natural bio filter media for efficient ammonia, nitrite and nitrate removal (250 ml treats 25 gallons)
• Also contains Seachem Purigen 100ml organic water clarifier resin that selectively removes nitrogenous waste and makes water crystal clear
• Matrix provides over 170 square feet of surface area per liter for biofiltration while Purigen works through adsorption
• Purigen can be regenerated and reused once exhausted by burning off organics with bleach solution