The tank is looking great, so clean! And the shrimp, they are very cool. If they are not chatting weather, they are gossiping. I imagine they are talking about the plecos and how they have to pick he their slack ;)

To add on to the background idea, another cheap option is to paint it. The film is likely easier to apply and not as much work to remove, but since you will be breaking the tank down to move it anyway might be easy just to give it a quick spray with some Krylon.