Ideas for a 37 gallon

[ashtonp]

Hi,

I have a 20 gallon long tank right now, with a few green plants, black sand substrate and some white rocks with a blue background. It looks nice with the cichlids I have (mbunas and peacocks), but I'm looking to get a 37 gallon (30"Lx12"Wx22"H) since its the same length and width, and I'd be able to use the stand I built.

Any ideas for designs for the 37? I like the way my 20L is set up now, but I could use a change.

 

[tarheels910]

White sand and a white-tan river rock pile in the middle would look awesome. A black background would look nice.