Tidal 75 Matrix 350ml Matrix™ is a high-porosity biomedia that provides efficient biofiltration for nitrogenous waste removal. Each Tidal™ filter comes with a bag of Matrix™ to get you started. Each Matrix ™ 35, 55, 75 and 110 is pre-packed in Seachem Zip bags, which feature durable seams and a heavy-duty zipper.

Tidal 55 Matrix 250ml Matrix™ is a high-porosity biomedia that provides efficient biofiltration for nitrogenous waste removal. Each Tidal™ filter comes with a bag of Matrix™ to get you started. Each Matrix ™ 35, 55, 75 and 110 is pre-packaged in Seachem Zip bags, which feature durable seams and a heavy-duty zipper.

Matrix 250 mL Natural porous bacterial carrier. Works aerobically and anaerobically. No need to change it over time. Matrix is the highly effective high-porosity filtration media for nitrogenous waste removal. Each liter of Matrix provides as much surface area

Matrix 500 mL Natural porous bacterial support. Works aerobically and anaerobically. No need to change it over time. Matrix is the highly effective high-porosity filtration media for nitrogenous waste removal. Each liter of Matrix provides as much surface area

MATRIX 4L Natural porous bacterial carrier. Works aerobically and anaerobically. No need to change it over time. Matrix is the highly effective high-porosity filtration media for nitrogenous waste removal. Each liter of Matrix provides as much surface area

Matrix 1L High capacity biofiltration Controls ammonia, nitrite, and nitrate Highly porous - enormous surface area (>~700 m2/L) Supports aerobic and anaerobic bacteria species

Purigen 250ml Product Description Purigen® is a premium synthetic adsorbent that is unlike any other filtration product. It 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 a rate and capacity that exceeds all others by over 500%.

Purigen 1000ml Product Description Purigen® is a premium synthetic adsorbent that is unlike any other filtration product. It 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 a rate and capacity that exceeds all others by over 500%.

Matrix 20 L Natural porous bacterial carrier. Works aerobically and anaerobically. No need to change it over time. Matrix is the highly effective high-porosity filtration media for nitrogenous waste removal. Each liter of Matrix provides as much surface area

Matrix 2L High capacity biofiltration Controls ammonia, nitrite, and nitrate Highly porous - enormous surface area (>~700 m2/L) Supports aerobic and anaerobic bacteria species