Ahana, as well as their little buddy, are based of off the Emerald Green Corydorus! Also known as Cory Cats or Emerald Green Cory Cats, they are a species of bottom dwelling fish native to the Amazon. They are a relatively peaceful species and they often feed on small crustaceans and worms. They can range from 2 3/4 - 3 inches in size, they can also live up to 13 years in a properly maintained aquarium.