I ate fish food once for a comedy routine. It tastes pretty bad.
Even still the ingredients from pet food is fairly lavish.
A sampling from your average cat food or fish food could contain:
Salmon, salmon eggs, lobster, albacore tuna, beluga caviar, sir loin stake, pork ribs, ham roast, light and dark turkey meat and filete mignon.
They eat better than we do!
Top it all off with the fact that we pick up their crap like some servant and it makes you wonder who the real dominant species on the planet is...