Peppered Corydoras

Corydoras paleatus

Catfish

One of the most popular and hardy Corydoras species. Notably, they prefer cooler water temperatures than most tropical fish. They are peaceful, bottom-dwelling schooling fish that use their sensitive barbels to sift through the substrate for food. They must be kept in groups to thrive.

At a Glance

Adult Size7 cm
Body ShapeDepressed
Growth RateModerate
TemperamentPeaceful
Water TypeFreshwater Only
Flow PreferenceModerate
Waste OutputLow
StockingSchool of 6+

Tank Requirements

Minimum Volume60 L
Minimum Length60 cm
FlowModerate
Water TypeFreshwater Only
Must-Haves in the Tank
Sand (Sifters)Smooth Gravel (Sensitive Barbels)

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Water Parameters

Temperature1824°C
pH67.5
Hardness215 dGH

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Temperament & Compatibility

Aggression LevelPeaceful
0/10
Where They Swim
Surface
Mid-level
Bottom
Stocking Guidelines
Keep at Least6 fish
Max per TankNo limit
Can Live Alone?No — needs a group
Behavior Traits
Hyperactive / Fast Swimmer

Available Varieties

Each variety inherits the species defaults above. Only differences are highlighted.

Standard

The standard wild-type coloration featuring a metallic, mottled pattern of dark grey/black spots over a pale silver or olive body.

Same care requirements as the base species

Also known as: Wild Type, Mottled

Albino

An albino morph of the Peppered Corydoras (often confused with the albino Bronze Corydoras). Shares the same cool-water requirements as the standard form.

Differs in 1 trait from base species

Also known as: Albino Peppered Cory, Pink Cory

Behavior Traits
Hyperactive / Fast SwimmerShy / Slow Moving (Easily Stressed)

Long Finned

A selectively bred morph with elongated fins. They are slightly less agile swimmers and prefer gentler water currents to prevent exhaustion.

Differs in 2 traits from base species

Also known as: Hi-Fin, Longfin Cory

FlowLow
Behavior Traits
Hyperactive / Fast SwimmerLong Finned (Nipper Target)

Peppered Corydoras Care Guide Summary

The Peppered Corydoras, scientifically known as Corydoras paleatus, belongs to the Catfish family group. Adults reach a maximum size of approximately 7 cm and have a depressed body shape with a moderate growth rate. Classified as peaceful, this species primarily occupies the bottom zone of the aquarium and produces a low level of biological waste.

To thrive, the Peppered Corydoras requires a freshwater only aquarium with a minimum volume of 60 litres and a tank length of at least 60 cm. Water temperature should be maintained between 18°C and 24°C, with a pH range of 67.5 and a general hardness of 215 dGH. A moderate water flow is preferred. An aquarium test kit can help you monitor these values.

The Peppered Corydoras is a rewarding species to keep, provided its core environmental needs are met. This species is available in 3 varieties: Standard, Albino, and Long Finned. Each may differ slightly in size, temperament, or care needs, so it is worth checking the specific requirements of the variety you plan to keep.

Peppered Corydoras Habitat Setup

When setting up an aquarium for the Peppered Corydoras, a moderate water flow best suits their natural preferences. Because this species occupies the bottom zone, the aquarium layout should prioritise sufficient floor space with hiding spots among rocks, wood, or dense planting. Useful additions include a sand substrate to accommodate their sifting behaviour and smooth gravel or rounded substrate to protect their sensitive barbels. Browse aquarium sand substrate options to find the best fit.

Peppered Corydoras Compatibility Notes

Classified as peaceful, the Peppered Corydoras is a schooling species that feels most secure in a sizeable group, where natural shoaling behaviour reduces stress and brings out their best colours. When choosing tankmates, their energetic swimming style may stress more sedentary or timid species. Selecting tankmates that favour different water layers from the bottom zone can help reduce competition and territorial overlap.

Frequently Asked Questions About Peppered Corydoras

How big does Peppered Corydoras get?+
Peppered Corydoras (Corydoras paleatus) typically reaches a maximum adult size of approximately 7 cm. They have a depressed body shape and a moderate growth rate.
What tank size does Peppered Corydoras need?+
A minimum aquarium volume of 60 litres and a tank length of at least 60 cm are recommended for Peppered Corydoras. This ensures enough swimming space and helps maintain stable water conditions.
What water parameters does Peppered Corydoras need?+
Peppered Corydoras thrives in freshwater only conditions with a temperature range of 18–24°C, a pH between 6 and 7.5, and a general hardness of 2–15 dGH. A moderate water flow is preferred.
Is Peppered Corydoras peaceful or aggressive?+
Peppered Corydoras is classified as peaceful with an aggression score of 0 out of 10. They are generally well-suited to peaceful community tanks.
How many Peppered Corydoras should be kept together?+
Peppered Corydoras is a schooling species and should be kept in groups of at least 6. Larger groups help distribute aggression and encourage natural schooling behaviour.
Does Peppered Corydoras have any special tank requirements?+
Yes. Peppered Corydoras benefits from sand (sifters) and smooth gravel (sensitive barbels) in the aquarium. These features help replicate their natural habitat and promote overall health and well-being.

Similar Species

Bronze Corydoras

Corydoras aeneus

Catfish
7 cm Peaceful

A highly popular, peaceful schooling catfish known for its armor-like scales (scutes) and active bottom-feeding behavior. They are essential clean-up crew members but require a dedicated sinking diet (not just leftovers). Sand substrate is strictly required to prevent erosion and infection of their sensitive barbels. They are 'gut breathers' and will occasionally dart to the surface to gulp atmospheric air.

Sterba's Corydoras

Corydoras sterbai

Catfish
6.8 cm Peaceful

A highly popular and peaceful schooling catfish known for its striking white-on-black spotted pattern and bright orange pectoral fins. Uniquely among Corydoras, they thrive in higher temperatures, making them excellent bottom-dwelling companions for warm-water species like Discus. They are obligate shoalers and must be kept on fine sand to prevent the erosion and infection of their delicate barbels.

Panda Corydoras

Corydoras panda

Catfish
5 cm Peaceful

A highly popular, peaceful schooling catfish easily identified by its black eye patches and spotted dorsal/tail fins, resembling a giant panda. Native to the cooler waters of the Ucayali river system in Peru, they require slightly lower temperatures than many standard tropical community fish. They are strict bottom-dwellers that sift through the substrate for food.

Pygmy Corydoras

Corydoras pygmaeus

Catfish
3 cm Peaceful

One of the smallest Corydoras species, the Pygmy Cory is a true nano fish. Unlike most of their bottom-dwelling cousins, Pygmy Corys are famous for hovering and schooling in the mid-water area. They are extremely peaceful but very shy, requiring a proper school to feel secure. A soft sand substrate is absolutely required to protect their delicate barbels.

Rosy Barb

Pethia conchonius

Cyprinids
10 cm Mostly Peaceful

A hardy, active, and colorful subtropical schooling fish. Known for the male's striking rosy-red breeding dress, while females are more golden/silver. They are voracious eaters, very active swimmers, and can be fin-nippers if kept in too small a group. Best kept in cooler water compared to tropical species. The Long Finned morph is also popular but requires gentler flow.

Julii Corydoras (False Julii)

Corydoras trilineatus

Catfish
6 cm Peaceful

Often sold in the aquarium trade as the 'Julii Cory', the False Julii (Corydoras trilineatus) is a peaceful, highly social bottom-dweller. It features a distinct reticulated (maze-like) pattern on its head and a prominent horizontal stripe down its body. As an obligate schooling fish, it must be kept in groups to thrive and feel secure. A soft sand substrate is absolutely critical to prevent the erosion of their sensitive foraging barbels.