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FishbeginnerFreshwater

Peppered Corydoras

Corydoras paleatus

AnimaliaChordataActinopterygiiCallichthyidae

📍 South America

Ask Finn

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.

Size2.75"
Min Tank20g
School6+
peaceful
Zonebottom

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.

Common Diseases

Barbel Erosion

Symptoms

Shortened, frayed, or missing barbels; difficulty foraging; lethargy

Treatment

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)

Symptoms

White spots on body and fins, rapid gill movement, rubbing against objects

Treatment

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

Symptoms

Frayed or deteriorating fins, discoloration at fin edges, lethargy

Treatment

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)

Symptoms

White or grayish film on body, mouth, or fins; loss of appetite; rapid breathing

Treatment

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)

Stats

Community tips0
Kept by0 hobbyists