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Species profile

Banded Corydoras

Scleromystax barbatus

Common names: Banded Corydoras, Bearded Corydoras, Checkerboard Corydoras

Recognized speciesCorydoras
Banded Corydoras (Scleromystax barbatus)

Adult size

Up to 10 cm

Typical adult length 8.5–10 cm.

Up to 10 cm

Countries of origin

  • See all stock from Brazil

Good fit for your tank?

Good fit for

  • A spacious cooler aquarium with excellent oxygenation
  • An experienced keeper interested in strong adult dimorphism
  • A group setup with room for several separate male territories

Think carefully if

  • The aquarium is warm, cramped or poorly oxygenated
  • Multiple adult males have no visual barriers
  • You expect the same placid social behaviour as a small Bronze Cory group

Banded Corydoras is a peaceful South American callichthyid catfish recognised by bold dark reticulation and banding, with adult males developing longer fins and cheek odontodes. It should be kept in a same-species group over fine sand in clean, oxygen-rich freshwater.

Appearance and Identification

Adult males develop striking black-and-cream marbling, a gold stripe over the snout, cheek bristles and an extended dorsal fin. Females remain larger, greyer and more evenly peppered, making mature pairs far more different than most cory-type catfish.

Identify this profile by the combination of bold dark reticulation and banding, with adult males developing longer fins and cheek odontodes. Colour alone can be unreliable in stressed, juvenile, or poorly conditioned fish, so body shape, snout length, fin pattern, and provenance should also be checked.

Sexual differences become clear in adults. Males develop bold dark patterning, cheek bristles and an extended dorsal fin, while females remain larger-bodied and more softly mottled; juveniles can still be difficult to separate.

Tank Requirements

Suggested filter
About 480–600 litres an hour
Minimum tank volume
120 litres
Minimum tank length
100 cm
Minimum group size
6
Recommended group size
8
Activity level
Moderate
Flow preference
Moderate
Planting preference
Moderately planted
Hiding places
Yes
Lid recommended
Yes
Jumping risk
Low

Use a spacious, well-oxygenated aquarium with fine sand, flowing areas, roots, stones and broken sight lines. Adult males can challenge one another, so provide ample floor space and several separate retreats rather than concentrating the group around one cave.

Behaviour and Tankmates

Generally peaceful toward other species, but adult males may display, chase and defend small areas against one another. A roomy layout with visual barriers reduces conflict while allowing the group to forage normally.

Keep at least 6 of the same species or coded population, with 8 or more preferred where space permits. A mixed collection of single corys does not fully replace a proper same-species group.

It is not territorial. Males may briefly chase one another or follow females during courtship, but sustained aggression is unusual when the group has adequate floor space.

Can share a community with peaceful, sturdy fish, but the aquarium must provide room for male displays and several separate retreats. Avoid aggressive cichlids, persistent fin-nippers and crowded groups of territorial bottom fish.

Check tankmates for this species

Water Parameters

Temperature
16–24 °C
pH
5.5–7.5
GH
2–15
KH
1–8
TDS
40–250
Stability importance
Important

This species prefers cooler, well-oxygenated water than most tropical community fish. Avoid prolonged high temperatures and provide strong gas exchange.

Parameter caveat
Acclimate slowly to changes in temperature, pH, and conductivity. Corydoradine catfish periodically gulp atmospheric air, so the water surface must remain accessible. Warm water holds less oxygen and requires stronger aeration.

Feeding

Diet types
Insectivore, Omnivore, Scavenger
Feeding frequency
Daily
Preferred foods
  • Quality sinking catfish pelletUse a small sinking pellet or wafer as a staple. Feed enough for every fish to reach food after faster midwater fish have eaten.
  • Frozen or live daphnia and cyclopsSmall crustacean prey supports natural foraging and is useful for conditioning breeding groups.
  • Frozen bloodworm, black mosquito larvae, or tubifexOffer clean, appropriately sized portions in rotation rather than as the only food.
  • Soft vegetable-based waferProvides dietary variety, although these catfish are not algae-eating cleanup animals and still require protein-rich food.

Use quality sinking foods with regular frozen or live invertebrate foods for conditioning. Spread food across the floor so subordinate fish and females can feed away from displaying males.

Feed after faster surface and midwater fish have taken their share, and confirm that every individual reaches food. Use small portions once or twice daily, remove persistent leftovers, and vary prepared and frozen or live foods.

Breeding

Breeding type
Egg Layer
Breeding difficulty
Moderate
Breeding temperature
20 °C
Breeding pH
6.5
Brood or egg count
Usually several dozen large adhesive eggs.
Incubation
5 days
Parental care
None
Baby foods
  • Newly hatched brine shrimpA primary growth food after fry have absorbed the yolk sac; feed small rinsed portions several times daily.
  • MicrowormsUseful for newly feeding fry that remain close to the substrate.
  • Vinegar eels or cultured infusoriaHelpful for the smallest species and uneven broods during the first feeding stage.
  • Fine powdered fry foodUse sparingly as a supplement and siphon uneaten material to protect water quality.

A conditioned group may spawn by the usual T-position and place adhesive eggs individually on plants, glass or other firm surfaces. Adult males can become more territorial during breeding, and eggs are best protected from the adults; success is less routine than with common Bronze or Peppered Corydoras.

Habitat and Origin

Geographic origin
Brazil, South America
Natural habitat
Freshwater River, Freshwater Stream, Sand/Mud Substrate
Aquarium contexts
Breeding Aquarium, Freshwater Aquarium, Freshwater Community, Large Freshwater Aquarium, Planted Aquarium
Audience level
Intermediate

Classification

Profile type
Recognized species
Genus
Scleromystax
Family
Callichthyidae
Species group
Corydoras, Fish

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