Update: went to Lowe's this week and couldn't find any frosted glass films I liked that were in my budget. So when I went to get dog food today at Petco, I broke down and bought a black background to try on the tank. I was afraid some of the fish wouldn't stand out against the black. That is why I hadn't done this earlier. But to my surprise it turned out great! It blends in with the filter too. I'll post pics soon.
20 Gallon Community FW
55 Gallon African Cichlid Tank