Aqua One PremiumSub Ceramic Substrate is a premium biological filter media engineered to provide exceptional filtration performance and long-term aquarium stability. Manufactured from highly porous ceramic, PremiumSub offers an enormous surface area for beneficial bacteria to colonise, allowing efficient biological filtration by breaking down harmful ammonia and nitrite. Designed for use in canister filters, internal filters, sump systems, and pond filtration, PremiumSub helps establish and maintain a healthy biological balance while supporting crystal-clear water in both freshwater and marine aquariums. Available Sizes✔ 320g✔ 650g✔ 1.4kg Key Features✔ Premium ceramic biological filtration media✔ Highly porous structure provides massive surface area for beneficial bacteria✔ Supports the natural breakdown of ammonia and nitrite✔ Promotes a healthy, stable aquarium ecosystem✔ Long-lasting and reusable filter media✔ Suitable for freshwater and marine aquariums✔ Ideal for canister filters, internal filters, sumps, and pond filters✔ Helps maintain crystal-clear, healthy water quality Perfect For✔ Freshwater aquariums✔ Marine and reef aquariums✔ Canister and internal filters✔ Sump filtration systems✔ Pond filtration✔ Maximising biological filtration performance
