1) As far as I know, feeding the fish is still on the charts for inclusion.
2) As for widescreen, you can still do that now by switching to windowed mode ( hit the "F" key ) and stretching the aquarium from one side of the screen to the other. Although with it being much wider now, you will be reducing the image where you might not see the detail and everything will be smaller.
PS. Welcome to the forums Harlan