The Planted Tank Forum - View Single Post - Fluval FX5 Canister Filter?
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Old 02-23-2013, 01:02 PM   #47
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My money is on energy efficiency. I don't think the difference in water dwell is going to make enough difference between 400 (250 real gph?) and 900 (600 gph?), frankly. As a planted tank owner I really don't worry too much about biological actions in the filter anyway, beyond what would be considered ample.
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