Backgrounds are sold individually.
All aquariums require 1 tube of Juwel Black Silicone to glue the backrounds to the rear of the tank.
Aquarium Number of backgrounds required:
Rekord 700 x 1
Rio 300 x 3
Rio 400 x 3
Trigon 190 x 3
Trigon 350 x 3
Vision 260 x 3