Betta Fish
From Equestripedia, the Archives of Equestria!
A Betta Fish (also known as a "Siamese fighting fish" in our world) was a type of fish found at the Animal Shelter. Betta Fish appear to be very angry or burnt out creatures, given their perpetual state of annoyance. Sunset Shimmer didn't want to adopt one, as she wanted a pet she could play with, rather than just stare at.
