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Isn't the U4 this giant hunk of plastic? I just don't see why you would rather have that when you could have a much cheaper powerhead.
Fluval U4 internal filter
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How well does the U4 work as an internal filter?
It would be an additional filter for me, sorta like a powerhead per say. Since I'll have a Fluval 406 it might not be enough flow around the whole tank.
It would be an additional filter for me, sorta like a powerhead per say. Since I'll have a Fluval 406 it might not be enough flow around the whole tank.
