Kane's Corydoras Care Guide
Corydoras kanei is a small armoured catfish of the rio Negro basin in Brazil, kept in peaceful soft-water community aquaria.
Compiled by Aquairi from published sources · Published · Updated
Overview
Corydoras kanei is a small armoured catfish of the family Callichthyidae, described by Grant in 1998 and currently placed by FishBase in the genus Hoplisoma. It occurs in the Negro River basin and reaches a maximum standard length of about 3.8 cm. It is also known in the hobby under the codes C026 and C046.
Taxonomy
- Family: Callichthyidae
- Genus: Corydoras
- Scientific name: Corydoras kanei
- Author: Grant, 1998
- Current placement: Hoplisoma kanei (FishBase)
Habitat
FishBase records the species from the Negro River basin. Seriously Fish reports it from the rio Negro basin, possibly restricted to the rio Branco drainage, with the type material said to originate from Roraima State near Boa Vista, Brazil.
Tank requirements
- Minimum tank volume: 80 L
- Temperature: 22-26 °C (72-79 °F)
- pH: 6.0-7.5
- GH: 2-12 °dGH
- Substrate: soft sand
- School size: 6 or more individuals
- Lifespan: 5-10 years
Diet
The species is an omnivorous forager. Seriously Fish notes that it accepts sinking dried foods plus live and frozen items such as bloodworm and Tubifex, and that a varied diet maintains health rather than relying on leftover food or expecting the fish to clean the tank.
Compatibility
Corydoras kanei is described by Seriously Fish as peaceful and gregarious, requiring groups of at least 4-6 individuals. Seriously Fish notes it is easily confused with C. atropersonatus, distinguished by dark anal and caudal fin markings, numerous smaller body spots and a darker base colour. It suits calm community aquaria.
Breeding
Seriously Fish recommends a ratio of two or more males per female and triggering spawning with large (50-70%) cooler water changes and increased oxygenation. Eggs are laid on the glass or vegetation and hatch in roughly 3-4 days; fry accept microworm and Artemia nauplii.
Conservation status
IUCN Red List: Least Concern (assessed 2020). FishBase rates the species as having high resilience.
Breeding Corydoras kanei
Overview
Corydoras kanei (also placed in the genus Hoplisoma) is a callichthyid catfish native to the Rio Negro basin, possibly restricted to the affluent Rio Branco drainage in Roraima state, Brazil. Seriously Fish gives a maximum standard length of 40-50 mm, and FishBase records around 3.8 cm SL.
Sexing
Females tend to grow larger, and sexually mature individuals are noticeably broader and deeper-bodied than males.
Conditioning
Keep two or more males per female if possible and condition the group thoroughly before attempting to spawn them.
Breeding Setup
Offer the aquarium glass, fine-leaved vegetation, or sunken spawning mops as deposition sites; mops are especially recommended for easy egg removal. Fry perform better over a thin sand layer than in a bare tank.
Spawning Behaviour & Trigger
Induce spawning by performing a large 50-70% water change with cooler water while increasing oxygenation and flow. Repeat daily until the fish spawn.
Egg & Fry Care
Eggs are placed on the glass, among fine-leaved plants, or within spawning mops. Incubation is normally 3-4 days, and once fry have absorbed their yolk sacs they accept small live foods such as microworm and Artemia nauplii. Maintain excellent water quality.
Common Challenges
Fry depend on consistently high water quality; rearing them over a thin sand layer is reported to reduce losses compared with a bare base.