Fun app, but... – Fish Fingers! 3D Interactive Aquarium Review

I really enjoy this app, but it has an annoying flaw. There's mostly saltwater fish in the aquarium, but for some reason the app designers included freshwater fan-tailed goldfish in the mix. This looks unnatural to me & why I'm giving this app four stars, not five.
Review by Debwitch on Fish Fingers! 3D Interactive Aquarium.