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FishbeginnerFreshwater

Skunk Corydoras

Corydoras arcuatus

AnimaliaChordataActinopterygiiCallichthyidae

📍 South America

Ask Finn

The skunk corydoras has a distinctive arched black stripe running from snout to tail over a pale body, resembling a skunk's marking. It is a peaceful, active bottom-dweller that does well in soft, slightly acidic water with fine sand substrate.

Size2.5"
Min Tank15g
School6+
peaceful
Zonebottom

Care Guide

Diet

Skunk corydoras are omnivores that thrive on a varied diet of sinking pellets, frozen bloodworms, and daphnia. Feed small amounts once daily, ensuring food reaches the bottom where they forage. Supplement with algae wafers and blanched vegetables occasionally to provide balanced nutrition.

Behavior

These peaceful, active bottom-dwellers spend most of their time sifting through substrate in search of food, aerating the sand in the process. They are highly social and should be kept in groups of at least 6 to exhibit natural schooling behavior and reduce stress. They are nocturnal and most active during dawn and dusk hours.

Breeding

Breeding skunk corydoras in captivity is possible but requires patience and specific conditions including cooler water temperatures (20-22°C) and frequent water changes to trigger spawning. Males will chase females, and eggs are typically laid on plants or tank glass; remove parents after spawning as they may eat eggs. Fry are small and require infusoria or liquid fry food initially.

Common Diseases

Ich (Ichthyophthirius multifiliis)

Symptoms

White spots on body and fins, rapid breathing, rubbing against substrate

Treatment

Raise temperature gradually to 28-30°C, perform daily water changes, use ich medication; treat for 7-10 days

Fin Rot

Symptoms

Frayed or deteriorating fins, discoloration at fin edges, lethargy

Treatment

Improve water quality with frequent changes, remove decaying food, use antibacterial medication if severe

Barbel Loss/Erosion

Symptoms

Shortened or missing barbels, difficulty locating food

Treatment

Ensure fine sand substrate (not gravel), maintain excellent water quality, provide varied diet with quality sinking foods

Bacterial Infection

Symptoms

Sores on body, cloudy eyes, loss of appetite, behavioral changes

Treatment

Perform large water changes, maintain pristine tank conditions, use broad-spectrum antibiotic if needed

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Quick Facts

diet
Omnivore – sinking pellets, bloodworms, daphnia, wafers
lifespan
5–8 years
max size
5 cm (2 in)
tank size
15 gallons minimum
school size
6+
temperament
Peaceful, schooling

Water it likes

ph
6.0–7.0
ammonia
0 ppm
nitrate
<20 ppm
hardness
1–10 dGH
temperature
72–79°F (22–26°C)

Stats

Community tips0
Kept by0 hobbyists