SimAquarium – Create a Virtual Fish Tank of Your Own
Get a fun, old-school looking virtual fish tank on your browser. Looking at and taking care of your fish will certainly pass the time in between tedious tasks. You can feed them, play with them, breed them, and more. The SimAquarium Extension program offers more than 20 species of fish you can discover through breeding — some of them are very rare!
You may also make profit off of your fish and use the money to buy larger species and better aquarium decoration and lighting. And, once you've saved up enough, you may even get the chance to buy a dolphin for your tank.