Yeah I was wondering about that, My LFS has a 90 or larger that has two of the overflows in it and they are both just off center, I'm not sure if I like that or not. I'm a firm believer in sumps though, if for nothing else auto freshwater top off, it's such a time saver. If you can find a 20 gallon tank and some plexi/acrylic you can make a sump easy in a couple hours.
Doug
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