Solox Corydoras
Corydoras solox
Robust long-snouted callichthyid from north-eastern Brazil. Splendid pearly/metallic body traversed horizontally by two large fragmented or continuous bands of intense black.
Température de l’eau
22 - 26 °C
Valeur du pH
5.5 - 7.2
Type d'eau
Eau douce
Niveau dans le bac
Fond
Taille adulte
6,5 cm
Volume minimal du bac
>= 100 L
Groupe minimal
>= 6
GH
1 - 10 dGH
KH
2 - 10 dKH
TDS
35 - 250 ppm
Conductivité
55 - 391 uS/cm
Description de l'espèce
Geographical Origin and Habitat: Originating from the Oyapock River basin, on the border between Brazil and French Guiana. Inhabits slow, wide rivers flowing through primary forests, on sandy bottoms covered with fine mud and wood.
Taxonomy and Morphology: Solox Corydoras (Corydoras solox). Large and spectacular species belonging to the "very long-snouted" Corydoras lineage. Shares the banded pattern with C. amapaensis. Easily reaches 6.5 cm (2.5 inches).
Social Behavior: Despite its size and "trunk-like" snout, it is a shy and peaceful animal. It is highly gregarious: a group of 6-8 individuals will forage together by sinking their long noses almost entirely into the sand to unearth worms.
Coloration and Sexual Dimorphism: Grayish-cream base coloration, interrupted by a conspicuous and wide black band running from the anterior end of the dorsal fin to the caudal peduncle, plus a dark blindfold over the eyes. Females are corpulent.
Soins, reproduction et cohabitation
Aquarium Setup: Large tank (minimum 100 cm / 40 inches). Fine sand mandatory to protect the very delicate long snout. Set up the bottom with bogwood roots, intricate Manzanita branches, and scattered Indian almond (Catappa) leaves.
Diet and Feeding: Extraordinary benthic hunter. Uses its snout to dig deeply: it is crucial to provide live/frozen bloodworms, tubifex, and blackworms, as well as high-quality protein pellets that sink rapidly.
Water Quality: Needs excellent substrate and water hygiene. Keep the water soft and acidic (pH 5.5-7.2) and avoid drastic spikes in pollutants. An oversized filter with moderate surface current is ideal.
Compatibility and Cohabitation: Quiet and harmless. Excellent companion for fish from the Oyapock basin or similar: small Loricariids, non-aggressive Characins, and South American dwarf Cichlids. Frenetic bottom fish should be avoided.
Aquarium Breeding: Difficult to breed in captivity. Follows the temperature drop protocol. Long-snouted parents are known to be avid devourers of their own eggs if they are not promptly removed from the spawning tank.
Risks and Diseases: Extremely susceptible to damage to the rostrum: sharp gravel is a death sentence. Wounds to the long snout become infected rapidly (Flexibacter) leading to tissue degeneration.
Origine et répartition géographiques
Originating from the Oyapock River basin, on the border between Brazil and French Guiana. Inhabits slow, wide rivers flowing through primary forests, on sandy bottoms covered with fine mud and wood.
Origine
Océans tropicaux et récifsAmazonie, Orénoque et Guyanes
Profil de poisson
- Tempérament
- Semi-aggressive
- The temperament of Corydoras solox is exceptionally peaceful and highly social in nature. They must be kept in groups of at least six individuals to thrive. In proper schools, they are confident and constantly active across the bottom.
- Régime alimentaire
- Omnivore
- The diet of Corydoras solox 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
- Specific M:F ratio
- A specific sex ratio is unnecessary for the general community keeping of Corydoras solox. For dedicated breeding, a ratio of two males per female is optimal. Females are visibly rounder and broader, while males are slender.
- Fréquence d'alimentation
- Twice daily
- It is recommended to feed Corydoras solox 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 Corydoras solox 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
- Corydoras solox 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 Corydoras solox 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 Corydoras solox 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
- Semi-aggressive
- In terms of compatibility, Corydoras solox is extremely peaceful and ideal for community setups. They coexist perfectly with small tetras, rasboras, and dwarf cichlids. Large, aggressive bottom-dwellers must be avoided to prevent undue competition.
- Niveau dans le bac
- Bottom
- As obligate bottom-dwellers, Corydoras solox 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
- 3 ± 0,3 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)

































































