Filter Socks...

[bullit67]

I change mine out every week when I do my water change only been using them for about 2 months now dont seam to have any problems since I started using them. I am using them to keep my sump clean I got tired of having to clean the sump every week.

[banditpowdercoat]

I used to use them, but now, 3 months without, and tank is nice and clean. Acctually, getting baby snails growing now. Don't know if it's just the maturity of my tank, or related to the socks??