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Fish Freshwater Care: medium Peaceful

Banded Corydoras

Scleromystax barbatus
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Other names: Bearded cory, Banded cory, Barbatus cory, Scleromystax barbatus, Corydoras barbatus
Group: Corydoras and armoured catfish · Family: Callichthyidae · Origin: South America — Atlantic coastal streams of southeastern Brazil (from Rio de Janeiro to Santa Catarina)

A large corydoras relative with an elongated body and a spotted-blotched pattern, called "bearded" because of the bristle-like spines on the males' cheeks. It needs cool, clean, well-oxygenated water.

Will it suit my tank?

Last updated October 16, 2026

Temperature
18–24°C
pH
6–7.5
Hardness
2–12 dGH
Adult size
9 cm
Minimum tank size
100 liters
Lifespan
5–10 years
Social structure
School
Group
at least 6, ideally 8+
Swimming zone
Bottom
Diet
Omnivore
Breeding
Substrate spawner

Water parameters

Temperature18–24°C
pH6–7.5
General hardness (GH)2–12 dGH
Recommended range
Considered shrimp safe Suitable for planted tanks

Overview

October 16, 2026 · Suggest an edit

Scleromystax barbatus, known for many years as Corydoras barbatus, is a large, long-bodied species that reaches 8–10 cm. It carries a mosaic pattern of irregular dark blotches on a pale beige–gold background. Mature males develop fine bristle-like spines (odontodes) on their cheeks; this is where the name "bearded" comes from, and males are usually more colorful. Because it comes from coastal streams in Brazil's Atlantic forests, it likes distinctly cooler water than tropical corydoras; temperatures constantly above 25°C do not suit it.

Tank Setup

October 16, 2026 · Suggest an edit
  • At least 100 liters for a group of 6–8; a base length of around 100 cm.
  • Fine, rounded sand substrate; a large open area for sifting.
  • 18–24°C; soft to moderately hard, very well-oxygenated water with gentle flow.
  • A 25–30% water change every week; it is sensitive to nitrate buildup.

Diet

October 16, 2026 · Suggest an edit

Sinking tablets and granules, frozen bloodworms, brine shrimp and tubifex. Since it is a large species, adjust the amount of food to the size of the group; it cannot live on leftovers alone.

Behavior and Compatibility

October 16, 2026 · Suggest an edit

A peaceful, social bottom dweller; it sifts the bottom in a group. It does not harm fish, but its temperature needs do not match those of tropical species that want warm water.

Good companions: peaceful species that like cool water: zebra danios, White Cloud Mountain minnows, peppered and panda corydoras, cool-water barbs.

Avoid: species that need warm water (discus, rams), cichlids that claim the bottom, large predatory fish.

A short profile for this species

The Banded Corydoras page has the basics, but the sections below have not been written yet. If you keep this species, write a section from your own experience; it will be published under your name after editor approval.

Tank mates

This list is calculated automatically from the species profile and grows as new species are added to the catalog. Try it in the planner for a definite answer.

Usually compatible

Should not be kept together

Hobbyist notes

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Change history and contributors
  1. Page created · October 16, 2026