Anyways Insaniquarium is a fish game. It's very slow at the beginning of each level but it actually gets really challenging. If you have Vista or 7 I believe you can browse your games section to play a free trial, and see if it's right for you.

The object is to feed fish and collect coins to level up. Along the way are 'aliens' that want to kill your fish.

Here is an image of tank 1, stage three from www.popcap.com, the original creators.

You buy the egg shells, in the corner, to leve, up for pets that assist in caring for your fish. As you can see there is a snail, which colects money and if you have good sight you can see a clam that makes valuable pearls. It's pretty much for people under 12, but I think that people 13+ may find it kinda pointless.

PS, every site I have seen requires money to pay for it. If you go to your games section and you have Windows 7 or Vista it costs around seven dollars once. Not twelve months, not six months, not monthly, only one. It's a game that a lot of people wouldn't spend money on but if you are younger (-9) you might enjoy it more than your membership. Online access required for gameplay.