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#13
10-12-2011, 07:37 PM
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Got mine at Princess Auto. They are cheap & rusting but I don't care, use 'em anyway, don't rinse or clean. The small amount of rust does not appear to be hurting anything in my system. If you think about it, the GFO (granulated ferric oxide) many of us use to absorb phosphate is basically the same thing, a pile of rusty iron.
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Mike 77g sumpless SW DIY 10 watt multi-chip LED build  http://www.canreef.com/vbulletin/showthread.php?t=82206
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