Ornamental fish farming involves the breeding and raising of fish species for the aquarium trade. This sector focuses on producing species with distinct colors, patterns, and behaviors, such as koi, goldfish, and tropical fish. Sustainable practices in ornamental fish farming aim to reduce the environmental footprint by improving water management, breeding techniques, and reducing the need for wild-caught specimens. The industry also emphasizes the welfare of the fish by maintaining optimal water quality and minimizing disease risks. Innovations in selective breeding and advanced aquaculture technologies continue to improve the efficiency and sustainability of ornamental fish farming, catering to growing consumer demand for ethical products.