Here's a pic of a sock: http://www.jlaquatics.com/phpstore/s...ID=pm-fb10016r
They're made of an industrial nylon-like material -pretty robust. I'd agree that I wouldn't wash them in a machine but they're not super hard to clean. Well worth the effort !
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-Mark
29 Gal Bowfront w/24" LED Lights. DIY HOB Sump (5.4 Gal) MP40. Orange Spotted Watchman Goby, 2 Clownfish and a few hermits.
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