Add Yahoo as a preferred source to see more of our stories on Google. If you want to bring one of them home, these shimmering rainbow fish can be found lining the shelves in the fish sections of pet ...

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. There ...