Hognosed Brochis Care Guide
Corydoras multiradiatus, the hognosed brochis, is a robust long-snouted catfish from the western Amazon with many soft dorsal-fin rays.
Compiled by Aquairi from published sources · Published · Updated
Overview
Corydoras multiradiatus, known as the hognosed brochis, is an armored catfish of the family Callichthyidae, described by Orcés-V. in 1960. It is a robust species formerly placed in the genus Brochis, distinguished by 17 to 18 dorsal-fin rays and a metallic green sheen. According to Seriously Fish its pectoral spines can puncture skin painfully.
Taxonomy
- Family: Callichthyidae
- Genus: Corydoras
- Scientific name: Corydoras multiradiatus
- Author: Orcés-V., 1960
- Recognised combination: Brochis multiradiatus (Orcés-V., 1960)
Habitat
FishBase records the species from the western Amazon River basin. Seriously Fish places it in north-western Amazon tributaries in Ecuador and Peru, particularly the Río Napo system. It is a tropical freshwater, demersal fish; aquaria use fine sand, with rounded gravel acceptable if kept clean.
Tank requirements
- Minimum tank volume: 200 L (base around 120 × 45 cm)
- Temperature: 22-26 °C (72-79 °F)
- pH: 6.0-7.5
- GH: 2-12 °dGH
- School size: 5 or more individuals
- Size: 8-12 cm (FishBase max 6.7 cm SL)
- Lifespan: 5-10 years
Diet
The species is an omnivorous forager. Seriously Fish notes it accepts sinking pellets and live foods such as bloodworm and Tubifex, and requires varied nutrition rather than relying on tank detritus.
Compatibility
Seriously Fish describes the species as peaceful and social, best kept in groups of at least six to eight individuals. As a larger, robust cory it suits roomy community tanks with calm tank mates and should be kept away from aggressive cichlids.
Breeding
Seriously Fish reports that reproduction of this species is unrecorded in the available literature.
Conservation status
IUCN Red List: Least Concern (assessed 7 December 2020).
Corydoras multiradiatus Breeding Guide
Overview
Corydoras multiradiatus, the hognosed brochis, is a former-Brochis species traditionally placed in Corydoras, found in the western Amazon basin in Ecuador and Peru. Wikipedia records a maximum length of about 6.7 cm, around 17 dorsal-fin rays, and a notably long snout. It likely spawns in a similar fashion to other Corydoras, laying eggs in dense vegetation without parental care.
Sexing
Wikipedia provides no sexing detail. As in related callichthyids, mature females are expected to be rounder and broader than males when viewed from above, particularly when gravid; this is presented as a genus-level expectation rather than a species-specific record.
Breeding Setup
- A spacious, well-oxygenated tank over fine sand
- Warm tropical water: Wikipedia reports about 21-24 C and pH 6.0-7.2
- Soft to moderately hard freshwater
- Fine-leaved plants, clean glass and spawning mops as egg sites
Spawning Behavior & Trigger
Wikipedia notes only that the species likely spawns like other Corydoras, scattering eggs in dense vegetation without parental care. Following that genus pattern, a large cooler water change is the usual spawning stimulus; this is offered as a genus-level approach rather than a species-specific report.
Egg & Fry Care
Because the adults do not guard the eggs, the clutch should be protected or moved for hatching. No species-specific fry-rearing protocol is published; breeders rear the fry as for other egg-scattering callichthyids, offering small live foods once they are free-swimming.