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Hoplisoma sterbai — Sterba's Corydoras

Sterba's Corydoras

Hoplisoma sterbai

Sterba's Corydoras (Hoplisoma sterbai) is a freshwater species with an adult-size reference of about 6.5 cm. It needs at least 80 litres and 6 individuals, with its social and territorial profile taken into account.

Température de l’eau

24 - 28 °C

Valeur du pH

6 - 7.6

Type d'eau

Eau douce

Niveau dans le bac

Fond

Taille adulte

6,5 cm

Volume minimal du bac

>= 80 L

Groupe minimal

>= 6

GH

2 - 15 dGH

KH

1 - 7 dKH

TDS

40 - 295 ppm

Conductivité

63 - 461 uS/cm

Description de l'espèce

Geographical Origin and Habitat: A freshwater species; the enclosure should provide stability, oxygenation, space and shelter consistent with its behaviour without turning one habitat description into a mandatory recipe.
Taxonomy and Morphology: The accepted scientific name is Hoplisoma sterbai; the verified classification records genus Hoplisoma, family Callichthyidae, subfamily Corydoradinae, order Siluriformes. Historical names remain searchable as synonyms rather than separate species.
Social Behavior: Sterba's Corydoras is social and should be kept in a group. The minimum reference is 6 individuals; sex, maturity and available space can require a more conservative composition. Observe access to food, resting behaviour, chasing and use of shelter. Isolation, persistent competition or aggression means the number, composition or environment needs to be corrected.
Coloration and Sexual Dimorphism: Colour and shape can vary with age, sex, physiological state and environmental conditions. Identification and sexing require recognized species-level characters; one appearance or photograph is not enough.

Soins, reproduction et cohabitation

Aquarium Setup: Sterba's Corydoras needs an aquarium of at least 80 litres, sized for adult body size and a minimum group of 6 individuals. Filtration, shelter and swimming room must match the species and the actual number kept. Volume alone does not make an enclosure suitable: tank shape and length, usable area, oxygenation and the ability to separate territories must reflect adult behaviour.
Diet and Feeding: The recorded diet is omnivorous. Offer appropriately sized foods varied within that category, and adjust quantity and frequency from actual intake, body condition and leftovers. One food or a fixed schedule is not suitable for every age and situation.
Water Quality: Maintain stable, well-oxygenated water appropriate to a freshwater species; the card's reference values are 24–28 °C, pH 6–7.6. Verify conditions with reliable tests and size maintenance and filtration to the actual load. Ranges are not automatic thresholds for treatment or rapid chemical correction.
Compatibility and Cohabitation: The cohabitation profile is suitable for a compatible community, with a generally peaceful temperament. Keep at least 6 individuals; tankmates, stocking density and decor must allow escape, rest and feeding without excessive competition. Watch interactions especially during feeding, maturity and breeding. Persistent chasing, injury or exclusion from food requires a change in stocking or layout, or separation of the animals.
Aquarium Breeding: The recorded reproductive profile is “oviparity”. Breeding should be attempted only with healthy adults, separation capacity and a plan for eggs or young. Do not treat unverified triggers, sex ratios or hatch times as universal for this species.
Risks and Diseases: Use a secure cover and close escape gaps. Prevent problems through quarantine of new arrivals, stable water, appropriate feeding and daily observation. Similar signs can have different causes, so check parameters, history and diagnosis before medication. Follow the product label and qualified aquatic-veterinary advice; there is no universal reduced dose for a species or family.

Origine et répartition géographiques

A freshwater species; the enclosure should provide stability, oxygenation, space and shelter consistent with its behaviour without turning one habitat description into a mandatory recipe.

Origine

Amérique du Sud hors Amazonie

Profil de poisson

Tempérament
Peaceful
Sterba's Corydoras has a generally peaceful temperament. Insufficient space, an unsuitable social ratio or incompatible tankmates can substantially change observed behaviour.
Régime alimentaire
Omnivore
The diet of Hoplisoma sterbai primarily features benthic organisms and small detritus. In captivity, they eagerly eat sinking pellets and high-quality bottom-feeder wafers. Live foods like bloodworms and daphnia should be offered for optimal health.
Espérance de vie
5-10 years
Taille adulte
6.5 cm
Ratio des sexes
Group
Sterba's Corydoras is social and should be kept in a group. The reference minimum is 6 individuals and must not be read as permission to overcrowd the aquarium.
Fréquence d'alimentation
Twice daily
It is recommended to feed Hoplisoma sterbai one or two times daily in moderate portions. Ensure the food reaches the substrate before mid-water fish consume it all. Feeding just before lights out helps them forage peacefully without stress.
Charge biologique
Low to Medium
The bioload of Hoplisoma sterbai is relatively low compared to larger tank mates. Since they are schooling fish, their combined waste can accumulate over time. Consistent filtration and weekly water changes are necessary for maintaining clean water.
Courant
Stagnant
Hoplisoma sterbai prefers a moderate water flow that replicates gentle Amazonian streams. This circulation thoroughly oxygenates the water and prevents detritus accumulation. Calm resting zones should also be provided for relaxation.
Risque de saut
Yes
The jump risk for Hoplisoma sterbai is very low compared to surface-dwelling fish. However, their unique respiratory system causes occasional rapid surface darting. A secure aquarium lid is highly recommended to prevent accidental escapes.
Reproduction
Oviparous
Breeding Hoplisoma sterbai in an aquarium is highly achievable with proper conditioning. Spawning is typically triggered by a large, slightly cooler water change. The female then deposits adhesive eggs on aquarium glass or broad plant leaves.
Compatibilité et compagnons
Community
The cohabitation profile is suitable for a compatible community, with a generally peaceful temperament. Keep at least 6 individuals; tankmates, stocking density and decor must allow escape, rest and feeding without excessive competition. Watch interactions especially during feeding, maturity and breeding. Persistent chasing, injury or exclusion from food requires a change in stocking or layout, or separation of the animals.
Niveau dans le bac
Bottom
As obligate bottom-dwellers, Hoplisoma sterbai spends the vast majority of its time on the substrate. They constantly search for food by sifting fine sand with their sensitive barbels. They occasionally dart to the surface to gulp atmospheric air.

Modèles et paramètres scientifiques

FishBase

Fenêtre sur les données scientifiques officielles de l’espèce

FishBase v25.04Données synchronisées le : 15/06/2026
Niveau trophique
2,9 ± 0,4 se
Résilience
Élevée (moins de 15 mois)
Singularité phylogénétique (PD50)
0.5
Relation bayésienne longueur-poids
a = 0.02455, b = 3
VulnérabilitéVulnérabilité faible (10 / 100)