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The taxonomy is disputed, but FishBase follows a review of the genus from 2006. [2] [8]In 2007 it was suggested that the correct scientific name of the blue/brown discus is S. haraldi, whereas S. aequifasciatus is the correct name for the green discus.
Symphysodon (colloquially known as discus or discus fish) is a genus of cichlids native to the Amazon river basin in Brazil.Due to their distinctive shape, calm behavior, many bright colors and patterns, and dedicated parenting techniques, discus are popular as freshwater aquarium fish, and their aquaculture in several countries in Asia (notably Thailand) [1] is a major industry.
Common discus, red discus: Symphysodon discus: 12 cm (4.7 in) Blue discus, green discus: Symphysodon aequifasciatus: 14 cm (5.5 in) Eartheater cichlid: Geophagus altifrons: 26.5 cm (10.4 in) Demon eartheater: Satanoperca jurupari: 17 cm (6.7 in) Threespot eartheater: Satanoperca daemon: 20 cm (7.9 in) Flag cichlid: Mesonauta festivus: 12 cm (4. ...
Species in this genus include: subgenus Discus Fitzinger, 1833 . Discus ruderatus Férussac, 1821 – type species [4]; Discus whitneyi (Newcomb, 1864) – Forest disc [5]; subgenus Gonyodiscus Fitzinger, 1833
Discus (comics), a fictional character from the Marvel Comics Universe and enemy of Luke Cage; Discus (fish), a freshwater fish popular with aquarium keepers; Discus, a genus of snails in the family Discidae; Discus intervertebralis, a cartilage between vertebrae; DISCUS, a data compression algorithm
Symphysodon tarzoo, the green discus, is a species of cichlid endemic to Brazil; specifically, to rivers of the western Amazon Basin upriver from the Purus arch, although it occasionally occurs downstream. [2] [3] An introduced population in the Nanay River is based on stock from the Tefé region. [4]
Haliotis discus is native to the shallow subtidal waters off Japan and Korea in the north western Pacific Ocean. [1] H. discus discus typically hides between rocks found at depths of 5–10 m (16–33 ft), sometimes as deep as 30 m (98 ft), in the waters around Jeju Island in Korea and Kyushu, Shikoku, and all but the most north eastern areas of Honshu in Japan. [4]
Symphysodon discus, the red discus or Heckel discus, is a species of cichlid endemic to the Amazon Basin of Brazil, where found in the lower Rio Negro, upper Uatumã, Nhamundá, Trombetas and Abacaxis. [2] This species is essentially restricted to blackwater habitats with a high temperature of 26–32 °C (79–90 °F) and low pH of 4.2–5.2. [3]