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Cobalt Aquatics offers a complete range of filtration media. Highlighted by a 3 tier range of bituminous activated carbon that will remove heavy metals, discoloration, odors and impurities to make your water sparkle. Nitrate and phosphate resins come pre bagged for easy use and remove nitrate and phosphate from both freshwater and marine systems. European sourced zeolite provides superior ammonia removal in freshwater aquaria, and comes compete with media bag. High grade micro and macro sized ceramic hexes as well as an innovative squishable Bio-Globe provide optimum surface area for biological filtration in any application.