Hamster
Another popular option as a family pet, a hamster subsists on fruits, nuts, berries, fruits and other dried foods. These super cute little guys are fun to watch and play with. Unfortunately, their lifespan is limited, they only live 1.5-2 years, and often die before they reach “old” age.
Mice or Rats
Not everyone agrees, but I think both mice and rats are adorable. OK, truthfully, mice and rats are both omnivores but typically prefer plant foods like seeds, grains, fruits, and nuts – eating them 15 to 20 times per day.
So, you can feed them a vegan diet and they’ll be quite happy.
Small fish
Fish can be herbivores, omnivores, or even carnivores depending on the species.
Luckily, many small fish can also be vegan and can be a good choice of pet for an ethical lifestyle. They are also better pets than many think and can be quite playful.