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Small Blue Cichlid (Rheoheros coeruleus)
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Small Blue Cichlid (Rheoheros coeruleus) specimen
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Cichlidae

Small Blue Cichlid

Rheoheros coeruleus

Twelve Centimeters Cichlid of Mexican Waters

  • Black
  • Blue
  • Tropical
  • Upper river
  • Regional distribution
  • Freshwater fish
  • Atlantic Ocean
  • Central America and the Caribbean
  • North America
  • Small
  • Tropical fish

Rheoheros coeruleus is a species of cichlid fish endemic to the Atlantic‑slope drainages of Chiapas, Mexico and adjacent Guatemala. It is a rheophilic member of the tribe Heroini and one of two currently recognized species in the genus Rheoheros. The species was originally described as Theraps coeruleus by Ranier Stawikowski and Uwe Werner in 1987, based on material from fast‑flowing tributaries of the Río Grijalva–Usumacinta system.

Family
Cichlidae
Maximum length
12 cm
Water
Freshwater
Distribution
Central America: Atlantic slope, upper Tulija River in the Usumacinta River drainage, Mexico.
Conservation status
DDData Deficient

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