Discus fish (genus Symphysodon) feature a distinctive laterally compressed, circular body that resembles a disc, which gives them their name. Adult discus typically grow between 6 to 8 inches with long, graceful dorsal and anal fins that enhance their elegant swimming style. They display a dazzling array of colors and patterns, ranging from earthy blues, reds, greens, and browns in the wild, to bright and intricate designs created through selective breeding. Their colors can change subtly based on mood, health, or environmental factors. Known for their peaceful and shy temperament, discus thrive in groups, exhibiting complex social behaviors and gentle interactions with tank mates.