Keeping the insaniquarium – feeding your fish and fending off aliens – is pretty fun and easy, but combining these two tasks is where you have some work to do. But aside from caring for the fish, your other challenging duty is to fight off the aliens inside the tank from feeding off your precious fish. This is an old puzzle game in which players are saddled with the simple task of feeding a variety of fish inside a brightly-colored aquarium. In Insaniquarium Deluxe, you have just two jobs: feed your fish, which is contained in the fish tank, and fend off the lurking aliens from eating your fish. Best Parental Control for iPhone & iPad.IPVanish VPN vs Private Internet Access.