There is no free download for Insaniquarium Deluxe. You have to
buy it.
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On Insaniquarium! Deluxe Virtual Tank, you can only buy an
Ultravore if it's in stock. In Adventure Mode, you can buy an
Ultravore in Tank 4 (who poops treasure chests).
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How do you sell your bubbulator on insaniquarium deluxe
version?