The Aquatic Remedies X‑PORES Filter Media is a high-porosity biological aquarium filter media made from porous material that offers a large surface area for beneficial bacteria to grow. It enhances the biological filtration process, helping to break down ammonia and nitrites, maintain a stable nitrogen cycle, and support clear, healthy water in both freshwater and marine aquariums. Its durable, low-maintenance design fits a variety of filter types like canister, sump, and internal filters.