Its OK
It looks nice. The fish options dont work so well, it doesnt allow multiple of the same fish. Ive also noticed that if you remove fish and re-add them they dont show up when the screensaver is launched. It doesnt support multiple monitors, when the screensaver comes on the other monitor desktop stays up. I would have expected it to at least go black if it wasnt going to show the aquarium.
macdreams about
Aquarium Screensaver