return vs drain

[crazytang]

I was wondering if some you guys could give me some insight on how I should have my tank set up. I currently have a 75g rr oceanic brick tank that has a center overflow with 1-1" hole and 2-3/4" holes. Currently I am running 1 3/4" return and 1-1" drain and 1-3/4" drain. I was wondering if that is okay or if I should run 2-3/4" returns and 1-1" drain. I have seen some setups with 1 drain and 2 returns and vice versa. Just wanted to get some feed back to make sure I have my setup okay. Thanks for any positive feed back.

[hobogato]

i think you are running it the safest way, because if one of your drains gets plugged up, the other should be able to handle all of the drain flow.