Beautiful Ornamental Discus Fish in aquarium

Ornamental fish is often used as a generic term to describe aquatic animals kept in the aquarium hobby, including fishes, invertebrates such as corals, crustaceans. Ornamental fish are kept or reared for their attractiveness. The breeding of ornamental fish began over 1000 years ago with the domestication of goldfish in China, and nowadays many fish species are highly prized for their distinct markings (eg, koi carp)