Symphysodon discus

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Symphysodon discus
Discus heckel.jpg
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cichliformes
Family: Cichlidae
Genus: Symphysodon
S. discus
Binomial name
Symphysodon discus
Heckel, 1840
  • Symphysodon discus willischwartzi W. E. Burgess, 1981

Symphysodon discus, the red discus or Heckel discus, is a species of cichlid native to the Amazon Basin, where found in the lower Rio Negro, upper Uatumã, Nhamundá, Trombetas and Abacaxis.[1]

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.[2]

This species grows to a length of 12.3 centimetres (4.8 in) SL.[3]

This species can also be found in the aquarium trade.[3]

Parental care[edit]

Small fry of this fish feed on the mucus secreted by their parents.[4]


  1. ^ Amado, M.V.; Farias, I.P.; Hrbek, T. (2011). "A Molecular Perspective on Systematics, Taxonomy and Classification Amazonian Discus Fishes of the Genus Symphysodon". International Journal of Evolutionary Biology: 1–16. doi:10.4061/2011/360654. PMC 3147135. PMID 21811676.
  2. ^ Bleher, H.; Stölting, K.N.; Salzburger, W.; Meyer, A. (2007). "Revision of the genus Symphysodon Heckel, 1840 (Teleostei: Perciformes: Cichlidae) based on molecular and morphological characters". Aqua. 12: 133–174.
  3. ^ a b Froese, Rainer and Pauly, Daniel, eds. (2013). "Symphysodon discus" in FishBase. April 2013 version.
  4. ^ Hildemann, W. H. (1959). "A cichlid fish Symphysodon discus, with unique nurture habits". Am. Zool. 93: 27–34.