Aquarium design: modern or nature look

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At Photojojo there is a post with customizing your aquarium using images, creating something like a tree dimensional images, to make the fish fill better - "... a project that’ll help you satisfy Goldie’s wanderlust while keeping him safely submerged in his aquatic home...".
Tell me if his Goldie won't fill much better in an environment of green life (something like this). In other words, you do it more for your satisfaction, then Goldie's