The Planted Tank Forum - View Single Post - The best bio filter media....um...ever
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Old 07-21-2013, 11:23 PM   #38
jargonchipmunk
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anyone get these on the first shipment that can testify to the media's performance over a month or two? Thinking about getting some of the balls for the bottom tray of the sunsun 302 I got for my upcoming 20L project.
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