Insaniquarium is an aquarium management game (that sounds boring but it isn't). You start with one fish and you feed it. Once it gets big enough it starts dropping coins which you have to catch. You use the coins to buy more fish and once you have enough cash you advance to the next level. There are quite a few levels and each level you have more and more fish to feed and collect money from. There are other quirks that you get each level like a momma fish, a sea horse, and a fish that helps defend you from aliens (???). Over all it will keep you playing for awhile.

Try not to go insain from playing Insaniquarium.

Source: Flash Games Gold