Mantis Bio Filter Spheres

Mantis Bio-Filter Spheres utilise inert ceramic construction with an open-flow design that maximises water circulation and bacterial colonisation. The porous structure delivers exceptional surface area for beneficial bacteria to establish robust biofilms, effectively breaking down ammonia and nitrite whilst maintaining water clarity. Superior to conventional filtration media, these spheres perform reliably across freshwater and saltwater environments—from home aquariums to larger pond systems. Available in 1kg and 2kg options to suit your setup's requirements. Durable, chemically inert, and engineered for long-term performance, Mantis Bio-Filter Spheres provide the biological filtration foundation your aquatic system needs.