The Silverfish aquarium

If your goldfish are futurists (or fans of SimCity 2000), they’d probably get a kick fin out of the Silverfish aquarium, designed by Octopus Studios. From the perspective of a fish, it’s an arcology, which is a huge habitat designed to deal with high population densities.

I suppose you could argue that just having a big tank full of water allows for higher density than six interconnected habitats, but that would be ignoring the privacy needs of your aquatic pals. And it would be way boring. The aquarium holds 60 gallons and is completely self contained, coming with everything necessary to keep tropical freshwater fish healthy and happy. Each one is custom made and will cost you $3400 excluding only fish and gravel.

Via:  ohgizmo