Edit Opsarius bakeri
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Name
Scientific name
Opsarius bakeri
Described by
Authority Day, Year 1865, Bracketed
Family
Cyprinidae
Common names
Not recorded
Photograph credits
All 8 credited
Summary
Opsarius bakeri is a fast-swimming cyprinid endemic to the Western Ghats of southwestern India, with records from many rivers in Kerala and…
Size and aquarium
Maximum size
130mm, standard length
Aquarium size
Minimum length 150 cm, Minimum depth 60 cm
Water
Water conditions
Temperature 18–26°C, pH 6–7.5
Hardness
1–10dGH
Conductivity
Not recorded
Behaviour
Temperament
Not recorded
Social needs
A shoal or group
Community suitability
Not for a community
Where it lives
Countries, regions, rivers and lakes
India, Achankovil, Bahavani, Bharatapuzha, Chalakudy, Chaliyar, Chandragiri, Chittar, Ithikkara, Kabini, Kallada, Karamana, Karyangode, Kuppam, Manimala, Meenachil, Muvattupuzha, Neyyar, Pamba, Pambar, Periyar, Puyankutty, Sharavathi, Tunga, Valapattanam, Vamanapuram
Writing
Etymology
Opsarius: apparently from an Ancient Greek word meaning 'small fish'. bakeri: named for Rev. H. Baker, who collected specimens of this species from Mundikyum (…
Distribution
Endemic to the Western Ghats mountains, southwestern India. In Kerala state records exist from the Periyar, Kabini, Chalakudy, Valapatanam, Chaliyar, Neyyar, P…
Habitat
Inhabits well-oxygenated, low-to-medium gradient, moderate to fast-flowing rivers and streams with substrates of gravel, cobbles, larger boulders and exposed b…
Aquarium size
Requires a large aquarium with minimum surface area of 150 ∗ 60 cm or equivalent.
Maintenance
The aquarium should ideally be designed to resemble a flowing stream or river with a substrate of variably-sized rocks, sand, fine gravel, and some larger wate…
Water conditions
Not written yet
Diet
Barilius spp. are predominantly surface-feeders preying on aquatic and terrestrial insects in nature, with some small fishes and benthic invertebrates probably…
Behaviour and compatibility
Unsuitable for the general community due to its environmental requirements, and likely to outcompete or intimidate slow-moving and less bold species at meal ti…
Sexual dimorphism
Adult females are less-brightly-coloured, tend to grow a little larger and are thicker-bodied than males, especially when gravid. Nuptial males develop breedin…
Reproduction
Spawning can apparently be stimulated by performing large, cool water changes but as far as we know there exist no reports of fry being raised.
Notes
This species is traded under several names including 'royal danio', 'blue-spotted hill trout', and 'blue-dotted mirror fish'. It can be distinguished from cong…
References
References
9 on this profile