However, its real name is the Asian arowana. It's a freshwater fish native to Southeast Asia, and it has taken the aquarium market by storm. Today, these fish are so prized that some have their ...

Species that are popular in the ornamental fish trade are very adaptive by nature. This virtue helps them easily adapt to ...

Betta, or Siamese fighting, fish are among "the most popular freshwater aquarium fish in the world," PetMD reports. Native to southeast Asia, this species is known for its range of vibrant hues.