Fill the filter media bag with loose media, such as bio rings for biological filtration, activated carbon for chemical filtration, or crushed coral to help increase pH. Tighten the draw string and tie shut with a bow or knot that can be undone if needed.
If the filter media bag becomes covered in debris over time, remove it from the filter and rinse it in a container of old tank water. Do not use soap or other cleaning detergents that may harm your aquarium inhabitants.
Two Size Options:
— Small is 3 inches by 8 inches.
— Large is 4 inches by 12 inches.
Mesh Size: 177 Micron or 80 Mesh