DIY sump ?

[Shu]

Ok I have a 20 gallon tall. I have extra 10 gallon that I want to make into a sump. I want it to look like the one here

http://www.3reef.com/forums/show-off...uge-65002.html

My question is where the water comes down from my display tank can I have bio balls. Also where would i place a protien skimmer and what one.

Will this overflow and return work?

Overflow
http://shop.aquatraders.com/Continuo...00-p/44011.htm

Return
http://shop.aquatraders.com/Odyssea-...mp-p/72011.htm

Thanks help is appreciated.

Also, How do I add it on. Do i just put it under my tank and let it start overflowing or would I have to put water in my sump