Edit Brochis amandajanea

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Name

Scientific name

Brochis amandajanea

Described by

Authority Sands, Year 1995, Bracketed

Family

Callichthyidae

Common names

Not recorded

Photograph credits

All 1 credited

Summary

Brochis amandajanea, long known as Corydoras amandajanea, is an armoured catfish from the Rio Miuã system of streams off the upper Rio Negr…

Size and aquarium

Maximum size

65mm, standard length

Aquarium size

Not recorded

Water

Water conditions

Temperature 23–27°C, pH 6–7.5

Hardness

2–12dGH

Conductivity

Not recorded

Behaviour

Temperament

Peaceful

Community suitability

Not for a community

Where it lives

Countries, regions, rivers and lakes

Brazil, Miuã, Negro

Writing

Etymology

Brochis: from the Ancient Greek βρόχος (brochos), meaning ‘loop’, in allusion to what Cope described as a looped cord joining the barbels at the end of the upp…

Distribution

Type locality is 'Rio Miuã system of streams, possibly the Uarinabe stream, 10-12 km from its confluence of the Upper Negro R., Brazil'. This appears to corres…

Habitat

Little is known, but the congener Brochis cryptica was described from the same locality so presumably these two occur sympatrically.

Aquarium size

Not written yet

Maintenance

Ideally use a substrate of fine sand, although rounded gravel is an acceptable alternative provided it's kept scrupulously clean. Other décor is largely down t…

Water conditions

Not written yet

Diet

Corydoras spp. are foraging omnivores and will accept most sinking dried foods, as well as small live and frozen varieties such as bloodworm, Tubifex, etc. Fee…

Behaviour and compatibility

Peaceful and gregarious. Should be maintained in a group of at least 4-6 individuals.

Sexual dimorphism

Females tend to grow larger, and sexually mature individuals are noticeably rounder and broader-bodied than males, especially when gravid.

Reproduction

Not written yet

Notes

Brochis amandajanea is rare in the aquarium trade and appears to be variable in colour pattern to an extent, with some individuals possessing relatively larger…

Brochis amandajanea is rare in the aquarium trade and appears to be variable in colour pattern to an extent, with some individuals possessing relatively larger dark spots on the body, for example.

Unfortunately diagnostic characters cannot be provided since we have been unable to obtain the type description to date, and little has been written about this species since it was published.

Until 2024 this species was placed in Corydoras, then among the largest catfish genera with over 150 valid species. Dias et al. (2024) divided it into five genera and moved this species to Brochis.

It is included in the family Callichthyidae, of which members are often referred to collectively as 'armoured' or 'mailed' catfishes group due to the presence of bony plates in place of scales on the body.

Their taxonomy can be confusing, and numerous undescribed species are also thought to exist.

Fish of unconfirmed identification entering the aquarium hobby are therefore typically assigned a 'C' or 'CW' number for purposes of reference and organisation.

They are facultative air breathers and possess a modified, highly vascularised intestine which has evolved to facilitate uptake of atmospheric oxygen and aid survival in oxygen-deprived environments. In the aquarium you'll occasionally see them rising to the surface to take in gulps of air.

The stiffened pectoral-fin spines are capable of piercing human skin and a 'sting' can be very painful indeed, so care should be exercised when handling them.

It is thought that secretions from the axillary glands at the base of each spine may even be mildly toxic or venomous.

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My own experienceFor example, I've kept twelve in a planted 60 cm tank since March 2024.A website I sawFor example, an IUCN Red List assessment, a museum catalogue or a FishBase page.A paperFor example, Marshall et al. (2011), Water temperature differences in interfluvial palm swamp habitats of Paracheirodon axelrodi and P. simulans.A book, or something not onlineFor example, Tappin (2010), Rainbowfishes: their care and keeping in captivity.Something already on the pageFor example, the Behaviour and compatibility section already says this.

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References

4 on this profile

Name

Scientific name

Described by

Family

Common names

Photograph credits

Summary

Size and aquarium

Maximum size

Aquarium size

Water

Water conditions

Hardness

Conductivity

Behaviour

Temperament

Social needs

Community suitability

Where it lives

Countries, regions, rivers and lakes

Writing

Etymology

Distribution

Habitat

Aquarium size

Maintenance

Water conditions

Diet

Behaviour and compatibility

Sexual dimorphism

Reproduction

Notes

References

References