Symphysodon discus

Symphysodon discus
Conservation status
	; Least Concern (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cichliformes
Family:	Cichlidae
Genus:	Symphysodon
Species:	S. discus
Binomial name
	Symphysodon discus; Heckel, 1840
Synonyms
	Symphysodon discus willischwartzi W. E. Burgess, 1981;

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]

This species grows to a length of 20 centimetres (7.9 in) SL.^[4]

This species can also be found in the aquarium trade.^[4]

Parental care

Small fry of this fish feed on the mucus secreted by their parents.^[5]

^ Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio) (2022). "Symphysodon discus". IUCN Red List of Threatened Species (in Portuguese). 2022: e.T141105901A141105905. doi:10.2305/IUCN.UK.2022-1.RLTS.T141105901A141105905.pt. Retrieved 5 July 2024.
^ 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. 2011: 360654. doi:10.4061/2011/360654. PMC 3147135. PMID 21811676.
^ 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.
^ ^a ^b Froese, Rainer; Pauly, Daniel (eds.). "Symphysodon discus". FishBase. April 2013 version.
^ Hildemann, W. H. (1959). "A cichlid fish Symphysodon discus, with unique nurture habits". Am. Zool. 93: 27–34.