Aquatic Experts Felt Filter Socks – 7 Inch Ring, 200 Micron is a 7-inch ring felt filter sock, made to capture 200 micron particles — uneaten food, fish waste, and detritus — as water passes through on its way to the sump. It drops straight into a standard filter-sock holder or overflow.
When flow slows, pull it out, rinse it, and reuse it; the heavy stitching holds up to repeated cleaning instead of falling apart after a few rounds. It works in freshwater, saltwater, and reef sumps.
Aquatic Experts was started by an aquarist who spent 25 years running an aquarium store and service company, and makes its filtration media in the USA.
