take a look at my build thread (little red house). It's only 4" high and 4"deep but it's 3 feet long in a 4 foot tank so it can handle more than enough flow. I also went with 4-1" drains because i'm a big fan of overkill. i'm sure i could've gotten away with 2.
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-Scott
Whenever I’m about to do something, I think “would an idiot do that?” and if they would, I do not do that thing
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