Overflows. Internal or External

[Madreefer]

Originally Posted by lastlight

I didn't read the entire thread but 11" seems excessive no?

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I should have explained better. My tank right now is 29" wide and 5 1/2" away from the wall. If I went with the 6" external overflow which would be ideal, my tank would stick out 6" more so a total of 11" from the wall.