External overflow through a bulkhead?

[jostafew]

Hey Myka, are you building from scratch or are you modifying an existing tank? I'm doing exactly this on my upcoming nano build (external herbie) but I'm going the be building the u-shaped back panel from one large panel and two smaller ones. Will be cheaper to snap a couple smaller pieces than to try to get that shape cut into one panel and since the back wall will painted the seam won't really be noticeable anyway.

Here's my tank concept:
http://www.reefcentral.com/forums/sh....php?t=2096996