External overflows

[studsrsx]

Hi,

Long time surfer of these forums but don't post much.

Currently looking at getting a new tank 180 gallon 72"x24"x24" and have decided that I am going with a benie style. My question is what size of overflow to go with, do I want the teeth guard, and what size of holes would you recommend?

I have done so much reading and thought I new what I wanted and now not so sure. One thing I do know is I got concepts building it and have heard nothing but good things about them.

Help me out please so I can start a build thread like everyone else lol