I actually just want to keep it black. I know thats kinda boring but consider these reason why:
I couldn't find any backgrounds high enough for the height of the tank.
I went to walmart and got that for $3.79 I think. Give or take a couple of cents.
I have mostly South American Fish in there. I believe once I get me a new Aqua-glo light to fit. It will help contrast the colors of my Oscars, and I believe it will exemplify the JD's and Green Terrors. Also, my EB Lobster.