People have kept fish in aquaria for centuries and this tradition became very popular in the Roman Empire. The Aquarium Fishes Free screensaver will let you see different colorful fishes usually kept in aquaria at home.
Aqua 3D
SeaStorm 3D
Future City 3D
The Pyramids 3D
Yahoo
Google
Delicious
Digg
Stumbleupon
Reddit
Simply
Ma.gnolia
BlinkList