Things You'll Need
- Scissors
- Double-sided tape
- Ruler
Instructions
Cut the aquarium background to the appropriate size. Many backgrounds come pre-cut to fit a certain size aquarium, but others may have to be trimmed to fit perfectly into the background. Use the ruler to measure the length and height of the back wall of your aquarium then use the scissors to cut it to those exact dimensions.
Place a small amount of double-sided tape along each side of the background's perimeter--one at the top in the center, on at the bottom in the center and two on each side in the center.
Press the taped side of the background against the outside of the aquarium's back wall. Press firmly and wipe it over with your hands to eliminate any air bubbles. Keep the background paper in between the trimming on the top and bottom of the aquarium.