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The book The Living Aquarium (by Peter Hunnam, Annabel Milne, Peter Stebbing; ISBN 0-517-39041-8) shows you how to make them, as does http://www.thecichlidgallery.com/article_styrobackground.htm.
If you don't want to make it yourself, you can always buy one. They are not cheap. See http://www.on-the-rocks.se/ |
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