Sump ideas

[eben]

I am busy planning a new cube. Dimensions will be 600mm x 600mm x450mm for the display tank. I need suggestions for the most effective sump setup. Would like to incorporate a ato reservoir, refugium and then the normal skimmer and return pump space.
Your advice would be greatly apreciated.

 

[Perthegallon]

I am busy planning a new cube. Dimensions will be 600mm x 600mm x450mm for the display tank. I need suggestions for the most effective sump setup. Would like to incorporate a ato reservoir, refugium and then the normal skimmer and return pump space.
Your advice would be greatly apreciated.

For a refugee to save space I put a acclimation box in it and then placed the macro alage and then a skimmer beside it