5.Mexican Dog Fish
Mexican dog fish is a salamander. But they do not undergo Metamorphosis that means they remain in water with their gills and fins on. They are also known as Axolotls. They are carnivores so palette food
with high protein content will be good for them. Their fish tank must be cleaned once a week. In summer the water should be cold. They will easily live for 10 to 15 years.