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 ...

A closeup shot of a pink female veiltail Betta Siamese fighting fish with aquatic plants in the background. Betta, or Siamese fighting, fish are among "the most popular freshwater aquarium fish in the ...

Bettas have become one of the most popular fish for first-time fish owners to purchase. Much of this has to do with the beautiful colors the fish come in and the perceived simplicity of their care.