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Peppered Corydoras
Corydoras paleatus
Animalia›Chordata›Actinopterygii›Callichthyidae
📍 South America
Peppered corydoras are popular bottom-dwelling catfish that sift through substrate in search of food. They are highly social and should be kept in groups of at least six. Fine sand substrate is essential to protect their sensitive barbels from abrasion.
Care Guide
Diet
Peppered corydoras are omnivores that primarily feed on sinking pellets and algae wafers, supplemented 2-3 times weekly with frozen bloodworms or brine shrimp. They actively scavenge the substrate for leftover food and decaying plant matter, making them excellent cleanup crew members. Feed small amounts daily, only what they can consume in 2-3 minutes to avoid overfeeding and water quality issues.
Behavior
These peaceful, highly social catfish are most active during dawn and dusk, spending much of their time sifting through the substrate with their sensitive barbels in search of food. They exhibit schooling behavior and become stressed when kept alone, displaying increased activity and confidence in groups of six or more. They are compatible with other bottom-dwellers and mid-water species, rarely showing aggression except during competitive feeding.
Breeding
Breeding peppered corydoras in captivity is possible but requires specific conditions including cooler water temperatures (18-20°C), frequent large water changes, and high-quality conditioning foods. Females will lay eggs on plant leaves or tank glass after a courtship display, and fry are relatively easy to raise on infusoria and finely crushed flakes. Success is moderate for experienced aquarists willing to set up dedicated breeding tanks.
Tank Mates
Similar water parameters, peaceful mid-water swimmers that don't compete for bottom space
Compatible bottom-dweller with identical water requirements and peaceful temperament
Peaceful mid-water dweller with overlapping temperature and pH ranges
Small shrimp that occupy similar ecological niche without competing; avoid very large corydoras
Peaceful schooling fish with compatible water parameters and non-aggressive behavior
Nocturnal bottom-dweller with similar temperature needs; may compete for algae wafers
Common Diseases
Barbel Erosion
Shortened, frayed, or missing barbels; difficulty foraging; lethargy
Immediately switch to fine sand substrate (no gravel); maintain pristine water quality with frequent water changes; provide quality sinking foods to reduce foraging stress
Ich (Ichthyophthirius multifiliis)
White spots on body and fins, rapid gill movement, rubbing against objects
Raise water temperature gradually to 28-30°C, perform daily 25% water changes, treat with ich medication following product instructions; quarantine affected fish if possible
Fin Rot
Frayed or deteriorating fins, discoloration at fin edges, lethargy
Perform 50% water change immediately, improve water quality and aeration, treat with antibacterial medication; ensure substrate is clean and soft to prevent injury
Columnaris (Flexibacter columnaris)
White or grayish film on body, mouth, or fins; loss of appetite; rapid breathing
Isolate affected fish, perform large water changes, treat with antibacterial medication; maintain optimal water conditions and avoid stress factors
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Quick Facts
- diet
- Omnivore – sinking pellets, wafers, bloodworms, algae wafers
- lifespan
- 5–10 years
- max size
- 6 cm (2.4 in)
- tank size
- 20 gallons minimum
- school size
- 6+
- temperament
- Peaceful, schooling
Water it likes
- ph
- 6.0–7.5
- ammonia
- 0 ppm
- nitrate
- <20 ppm
- hardness
- 2–15 dGH
- temperature
- 72–79°F (22–26°C)