Filter media balls are lightweight biological media designed to support beneficial bacteria and improve water quality in aquariums. These filter media balls provide a high surface area for bacterial growth, helping break down ammonia and nitrite efficiently. The spherical design promotes even water flow and prevents clogging. As a result, they work well in canister filters, sumps, and internal filters. In addition, their lightweight structure allows easy handling and flexible placement. Filter media balls support stable biological filtration in both freshwater and marine aquariums. Therefore, they provide a simple and effective solution for maintaining clean and healthy water conditions. To build a complete filtration system, combine filter media balls with Mini Bio Bricks and a Ziss bubble bio filter. This increases surface area for beneficial bacteria while also providing active biological filtration through moving media. For best results, use filter media balls in canister filters or sumps alongside ceramic media and air-driven filtration. As a result, this improves water clarity, stabilises parameters, and supports long-term aquarium health. Also available in value packs of 5 and 10 at a discounted price Features & Specifications Each Sphere has a surface area of 580ft2 – 20 Spheres is roughly equivalent to 40 pounds of Live Rock! Supporting Local Organisations We proudly sponsor the Illawarra Cichlid Society and strongly encourage you to support this great organisation. About Our Business We are an experienced and well-respected Australian business supplying high-quality plecos and original aquarium products. With over 30 years of experience in fishkeeping and breeding, alongside postgraduate study in aquatic health, nutrition, and disease management, we apply a science-informed approach to selecting and recommending aquarium products and foods. We ship products Australia-wide via courier from NSW. If you have any questions, please contact us and we will respond as quickly as possible. Thank you for supporting local breeders and our small business. Kind regards,Nat Copyright © Nat’s Fish. All rights reserved. This content, including product descriptions and images, is protected under Australian copyright law and may not be copied or reproduced without permission.