In this article, it tries to highlight the importance of the ornamental fish species industry in the world and Iran. It implicates the gene transfer method being able to produce aquarium fish species possessing special characteristics. Then, a variety of genes and promoters which can create colorful aquarium fish are defined. Finally, we recommend that researchers use the gene transfer biotechnology to produce worth and more attractive aquarium fish species because the ornamental fish are not for food purpose and the potential of producing ornamental fish is present due to species diversity and breeding center in Iran.