Felt Filter Sock with Plastic Ring - 100 Micron Alkalinity Test This has been shown to

This has been shown to benefit spawning cycles in some tank organisms

and Secure Connection

100 micron felt filter bags are designed to provide fine ‘polishing’ of water that is already low in particulate matter (mature aquariums)

Body Size: 4in

your cables stay neat and organized

Felt Filter Sock with Plastic Ring - 100 Micron Alkalinity Test This has been shown toRed Sea Felt Filter Socks are great for trapping detritus and free floating particles in your tank. Filter socks are washable for continued use and will help give your tank water that crystal clear look. 100 micron felt filter bags are designed to provide fine polishing of water that is already low in particulate matter (mature aquariums). 100 Micron Felt Filter Sock 4" x 10. 5" with Plastic Ring Filter socks are most commonly used in sumps to help