The oscar fish, a unique-looking fish from South America ... but these varieties are guaranteed to make visitors want an aquarium of their own. Wild oscars are the default type of oscar fish.

This fish, which has been popular among aquarium enthusiasts, was discovered to have unique physical features and DNA distinct from other known species. | Published Jan. 8 | Read More | Deep-sea ...

Betta fish, often called Siamese fighting fish, are among the most popular aquarium pets due to their vibrant colors and unique personalities. However, their beauty and resilience don’t negate the ...

The oscar fish, a unique-looking fish from South America ... but these 15 varieties are guaranteed to make visitors want an aquarium of their own. Wild oscars are the default type of oscar ...