The Planted Tank Forum - View Single Post - Anyone using a sump?
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Old 04-01-2013, 01:54 PM   #2
HD Blazingwolf
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quite a few people here are
i have two tanks wit them now. and im one step past sump, i have a wet/dry filter which does exchange co2 fairly readily.

if you set your sump up properly, you will increase oxygen levels and still retain much of you co2, such that the 5 pound tank will last maybe say 4 months?
not bad considering my 20 lb lasts me 2 months on my 75 gallon
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