7 inch filter sock
Posted: 7/18/2013 from ROCKFORD, MI UNITED STATES
It is shorter than I would have liked
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Posted: 2/16/2011 from WELLINGTON, FL UNITED STATES
I took out the bio-balls and started using the "Sock". It works well, removing food (like shrimps, etc.). The only issues I found with this product is that you have to change them aleast twice to three times a week. Besides that, it clean your water clean.
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