Originally Posted by Dinogeorge
Unless you want some sort of scenery, it’s a lot easier painting the outside of the rear of the glass either black or blue. But that may not be of interest to you. So a trick you can try it to tape one end really well. In fact, over-tape it. Then after it is secure on one end, take the other end and stretch it tight. Then secure it with tape. You can go back to the first end that you over-taped and remove the unsightly tape.
Hope this helps.
Agreed, I tape one end really well. Then do the best you can to pull and even out the background while taping it to the other end.
No real trick, just make sure it is tight - if you get water between the tank and the background (which i've done), it is really easy to pull off, clean, and restick.