The Planted Tank Forum - View Single Post - Setting up a 2.5g long. How do I filter?
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Old 01-10-2013, 10:02 PM   #6
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Is your tank the Deep Blue Professional 3-gallon tank?

If so, the AC30 will be fine. You'll just have to use a Dremel to cut down the intake pipe, turn the flow all the way down and fill it full with filter floss. If it's still too much flow, you can swap out the AC30 impeller for the AC20. I use 20s on my 3gal tanks and love them.
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