You should make that last one your avatar. sweet looking set ups, the only concern of mine is how the hell did you get that snook to cohab with tetras? you know how huge their mouths are!
Actually there are no Tetras in the tank......they are printed on the background.....The Snook shares a tank with a school of Odessa Barbs and a school of Filament Barbs and my Gold Severum.....I agree Tetras would most likely become quick snacks for the Snook.