I wish there were mini sea turtles we could have in the aquarium. I remember going to the aquarium here in Maryland and seeing the sea turtle in this huge tank. with other fish and I think even a few sharks. MA3 makes me think of those great memories as a kid and teen.
Maybe a sea turtle screen saver could be made?
Or even just fresh water turtles. I know they don't look as pretty as the fish, but they still do look nice. A crab would also be nice in the MA3 tank. Dream Aquarium has a cute crab in the tank that runs around. Also I wish the starfish would get back up on the glass.