Aquarium Filter Media Bag

Easy to fill and empty Keeps loose filter media contained Less mess during filter maintenance Keep your loose filter media better contained with a mesh filter media bag. They are great for bio rings, crushed coral, and carbon - among many other types (not recommended for Seachem Purigen). When it comes time to service your filter, pulling a bag of media out is much easier and less messy than trying to clean your filter with loose media inside. These bags are made of fine mesh so that water circulates freely around and throughout the media. 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