
Originally Posted by
aquamaniac
Black paint probably looks the best if done right. I like a black background because it provides depth but honestly, anything covering the back of the glass is better than nothing. I really dislike seeing a really nice set up only to be distracted with cables, pictures, ugly walls, etc. in the back.
I currently like to use black corrugated cardboard. It's really easy to simply cut it to size, hot glue some spots and that's it! Looks good and no fuss. If you would like to try that let me know, I could give you a piece for your 20g long.