Overview

Distribution

South America: Amazon River basin.
  • Lima, F.C.T., L.R. Malabarba, P.A. Buckup, J.F. Pezzi da Silva, R.P. Vari, A. Harold, R. Benine, O.T. Oyakawa, C.S. Pavanelli, N.A. Menezes, C.A.S. Lucena, M.C.S.L. Malabarba, Z.M.S. Lucena, R.E. Reis, F. Langeani, C. Moreira et al. … 2003 Genera Incertae Sedis in Characidae. p. 106-168. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 38376)   http://www.fishbase.org/references/FBRefSummary.php?id=38376&speccode=10622 External link.
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Amazon River basin: Brazil, Colombia and Peru.
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Physical Description

Size

Maximum size: 50 mm TL
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Max. size

4.1 cm SL (male/unsexed; (Ref. 38376))
  • Lima, F.C.T., L.R. Malabarba, P.A. Buckup, J.F. Pezzi da Silva, R.P. Vari, A. Harold, R. Benine, O.T. Oyakawa, C.S. Pavanelli, N.A. Menezes, C.A.S. Lucena, M.C.S.L. Malabarba, Z.M.S. Lucena, R.E. Reis, F. Langeani, C. Moreira et al. … 2003 Genera Incertae Sedis in Characidae. p. 106-168. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 38376)   http://www.fishbase.org/references/FBRefSummary.php?id=38376&speccode=10622 External link.
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Ecology

Habitat

Environment

benthopelagic; freshwater; pH range: 6.0 - 8.0; dH range: 5 - 12
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Boehlkea fredcochui

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 2
Species With Barcodes: 1
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Conservation

Threats

Not Evaluated
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Relevance to Humans and Ecosystems

Benefits

Importance

aquarium: commercial
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Wikipedia

Cochu's blue tetra

For other species also called blue tetra, see here.

The Cochu's blue tetra or blue tetra, Boehlkea fredcochui, is a species of characin. Its natural range is in the Amazon Basin. It is commonly kept as an aquarium fish.

This species has most likely not been seen in the hobby for many years. Knodus borki is likely the fish in the trade.

Aquarium Care[edit]

Blue tetra, Male and Female
  • Maximum length: 5.5 cm (2 inches)
  • Colors: Blue, pink
  • Temperature preference: 22-27 celsius (71-80 Fahrenheit)
  • pH preference: 6 to 7.5
  • Hardness preference: Soft to medium (less than 15ºd)
  • Salinity preference: No salt
  • Compatibility: Generally peaceful, may nip fins during feeding or when stressed
  • Life span: Typically 2 to 3 years
  • Ease of keeping: Easy
  • Ease of breeding: Moderate to hard

As for other schooling characins, the blue tetra should always be kept in groups of at least six. A very active fish, it requires open areas in which to swim and is best kept in aquariums 90 cm (35") or larger. Aggression is generally limited to conspecifics in appropriate setups, but they may harass other fish in too small a tank, or without enough other tetras.

Spawning may occur in home setups, with the eggs being scattered over fine leafed plants. Soft, acidic water is required for hatching to occur. Males may be differentiated from females by their slimmer, more streamlined form and more intense colouration.

References[edit]

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