You may be in a haste to dispose off your obsolete iMac but before you do that we would like to tell our readers that they would surely regret doing that for it can be turned into an aquarium. Surprised? Well yes, your old iMac can be modified to serve as a fish tank and look amazingly beautiful as well. Avoiding the huge fish you can give the small ones a whole new place to stay and your old iMac a whole new definition and function. The geeks would love it, have a look!