Discus (Symphysodon ) are a genus of three species of cichlid freshwater
fishes native to the Amazon River basin.Discus are very popular as aquarium
fish and their aquaculture in several countries in Asia is a major industry
because there is feng shui at home.
The main species of (wild) of the genus Symphysodon:
Symphysodon Discus (Heckel Discus) - Heckel, 1840
Its area Rio Negro and its tributaries, this variety has as main feature of the
5th black cross line, very pronounced, with the background and color, both
red and blue.
Symphysodon Aequifasciatus Axelrodi (Brown Discus) - Pellegrin, 1904
Discovered near Belem and Rio Urubu, is the most common species, with brown
background color with a tendency toward red and yellow.
Symphysodon Aequifasciatus Aequifasciatus (Green Discus) - Pellegrin, 1903
Its complex Tefe River 'and regions Coari, Nanay and Japura Peruvian and
Brazilian Amazon. This fish is presented in a wide variety of colors,
from yellow and brown to olive green and dark green. They meet and grooved
specimens with longitudinal (Royal Green) and specimens with red dots on the
Symphysodon Aequifasciatus Haraldi (Blue Discus) - Pellegrin, 1904
Its complex regions of Manaus and Manacapuru, Purus River in Brazil and Leticia
region in Peru. Looks like a brown variety, but has grooved longitudinal blue
on the head, body and fins (longitudinal specimens that striatiunile
predominates, is called Royal Blue
However now many varieties have been selected especially in Asia and fully deserves the title of king of the aquarium