Here's a few leftover shots from the Florida Aquarium in Tampa. These are from an exhbit of tropical fish tanks such as you could have at home. Adam has some good shots of these same fish.
These fish that look like they are just bones are called "glassfish" and they seem to be just totally transparent... like glass. It's really quite bizarre. They had them displayed in a tank with bits of clear glass in the bottom and the effect was wild.