Aquarium is an application that will turn your iPhone or iPod Touch into an “aquarium” of sorts. It’s interesting mainly because they’ve managed to run this (almost) as a background app that does not affect the performance of the phone itself. It’s available through Cydia for free.

When you install the app, it will be added into WinterBoard where it can then be activated/deactivated. If you activate the application, it will add a wallpaper to your iPhone that looks like the bottom of the Ocean along with little swimming fish behind your icons on your SpringBoard. The fish are a little glitchy in their movement sometimes but, the app does not seem to affect the actual performance of the iPhone at all. How did they do it?

It’s available through the RanBee source here: http://ranbee.com/repo

You will need a jailbroken iPhone to use this.