
To keep your Tetra EX 600 Plus External Filter running smoothly, follow these guidelines for the filter media: Replace the Tetra FF Filter Floss Pad monthly. Clean or replace the Tetra CF Carbon Filter Medium every 2 to 4 weeks. The Tetra BB Bio Filter Balls and Tetra CR Ceramic Filter Rings should be replaced every 12 months, or sooner if they become blocked by excessive debris. The Tetra BF Biological Filter Foam should be replaced every 6 months or when visibly soiled, with a full replacement recommended every 12 months. Always use aquarium water when cleaning filter media, and avoid cleaning agents or chemical solutions to preserve beneficial bacteria and maintain a healthy environment for your fish.


