The Planted Tank Forum - View Single Post - Filter outflow surface agitation
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Old 04-30-2013, 05:42 PM   #3
puopg
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Thanks, yea i heard something along the lines of even a bit of agitation is enough. Do you get scum buildup? I get a layer of scum sometimes if I don't churn that surface layer well. And doesn't that affect oxygen exchange?
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