🐠 Pygmy Corydora

Corydoras pygmaeus | Tiny, peaceful nano catfish with graceful schooling displays and exceptional planted-tank appeal

Bring delicate movement and natural charm to your aquarium with the Pygmy Corydoras. Corydoras pygmaeus is one of the smallest Corydoras species, prized for its miniature size, peaceful nature, and fascinating habit of moving through both the lower and middle levels of the aquarium.

Perfect for planted nano and community aquariums, these tiny catfish create an especially beautiful display when maintained in a group.

✨ Why aquarists love Pygmy Corydoras

✔️ Miniature size — one of the smallest Corydoras species available
✔️ Peaceful and social — excellent for calm community aquariums
✔️ Unique swimming style — frequently moves through the midwater as well as near the substrate
✔️ Perfect for planted aquariums — adds life without overwhelming an aquascape
✔️ Highly engaging species — fascinating to observe in groups

🌍 About the species

Corydoras pygmaeus originates from South America, particularly the upper Madeira River region and surrounding freshwater habitats.

These tiny catfish are known for:

• Silver-grey body with a distinctive dark lateral stripe
• Compact body and delicate proportions
• Small barbels and armored body plates
• Strong social instincts
• Fascinating combination of bottom-level and midwater swimming

Their miniature size and unusual swimming behavior make them especially popular among nano-aquarium enthusiasts.

🏡 Ideal aquarium setup

Pygmy Corydoras thrive best in:

• Nano planted aquariums
• Community tanks
• Nature-style aquascapes
• South American biotope aquariums
• Mature freshwater systems

Recommended setup:

• 40 liters or larger
• Fine sand or smooth substrate
• Dense aquatic plants and shaded areas
• Open swimming space
• Stable water parameters
• Gentle filtration and water movement

⚠️ Compatibility notes

Pygmy Corydoras are extremely peaceful and social and should ideally be kept with other peaceful, similarly sized species.

Not ideal with:

• Large predatory fish
• Aggressive cichlids
• Large territorial bottom dwellers
• Fish capable of swallowing them

Best suited for:

✔️ Nano community aquariums
✔️ Planted tanks
✔️ South American biotope setups
✔️ Beginner and experienced aquarists alike

🚚 Professionally packed for live arrival

Every shipment is treated as a live biological transport, not a standard parcel.

Your fish are packed using:

• Oxygen-filled fish bags
• Temperature-insulated packaging
• Shock-absorbing thermocol protection
• Fastest safe transport routes available

This minimizes transit stress and improves live arrival success.

🛡️ Live Arrival Guaranteed*

Instant Refund for DoAs in accordance with our Refund Policy.

👉 You are not taking the risk alone.

🧭 Is this right for you?

✔️ You maintain a nano or planted aquarium
✔️ You want a peaceful miniature catfish
✔️ You appreciate unusual schooling behavior
✔️ You want active fish without large bioload requirements

⚠️ Not ideal if:

• You keep large predatory fish
• Your aquarium contains aggressive tankmates
• You use sharp or abrasive substrate
• You prefer large centerpiece fish

🔬 Nero Labs Standard

These fish are maintained with:

• Controlled batch monitoring
• Observation-based selection
• Stress-aware handling
• Survival-focused transport preparation

We prioritize long-term health, structural quality, coloration, and behavioral stability over bulk-volume movement.

👉 Add miniature charm to your planted aquarium

Experience the peaceful nature, fascinating movement, and tiny elegance of the Pygmy Corydoras (Corydoras pygmaeus) from Nero Labs.

Pygmy Corydoras (Corydoras pygmaeus)

Description

The Pygmy Corydoras (Corydoras pygmaeus), offered by Nero Labs, is a selectively maintained ornamental dwarf catfish recognized for its miniature size, delicate silver coloration, dark lateral stripe, and highly social shoaling behaviour. Native to freshwater tributaries of South America, this species naturally inhabits shallow, slow-moving waters with fine substrates, submerged vegetation, and leaf litter.

Its compact body typically displays a silvery to pale grey base coloration with a distinctive dark horizontal stripe extending along the lateral line. The streamlined body and relatively large eyes give the Pygmy Corydoras a delicate appearance, while its small adult size makes it particularly suitable for carefully planned nano and planted aquarium systems.

Unlike many larger Corydoras, C. pygmaeus spends considerable time swimming in the lower and middle portions of the water column. Individuals frequently move together in loose shoals, periodically settling onto the substrate to forage before returning to open-water activity. This combination of benthic and midwater behaviour makes them especially engaging to observe in planted aquaria.

Specimens supplied are lab-reared and system-acclimated within controlled, closed-system environments, minimizing early-life stress and supporting reliable long-term adaptation to aquarium conditions. This lineage represents domesticated ornamental stock maintained for structural health, behavioural stability, and aquarium suitability rather than wild ecological function or conservation deployment.

System & Rearing Notes

Origin: In-house, Nero Labs
Rearing environment: Controlled, closed system
Line status: Selectively maintained ornamental dwarf Corydoras
Behaviour: Peaceful, highly social, shoaling
Swimming profile: Lower to midwater, with frequent substrate activity
Feeding behaviour: Omnivorous; accepts appropriately sized prepared, frozen, and live feeds
Habitat preference: Fine sand, planted areas, leaf litter, and gentle water movement
Colour development: Stable; lateral stripe and silver coloration become more defined with maturity and good conditioning
Morphological traits: Miniature body with characteristic dark lateral stripe and delicate finnage

Minor variation in stripe intensity, body tone, and overall size may occur between individuals and reflects normal biological diversity within maintained ornamental populations.

Availability & Use

Availability of Pygmy Corydoras is cycle-dependent and determined by biological readiness rather than inventory-driven targets. This species is suitable for beginner to advanced aquarists seeking a peaceful miniature schooling fish.

Best suited for planted nano aquaria, South American-inspired community systems, and peaceful freshwater displays emphasizing natural shoaling behaviour and subtle coloration.

Important Note

Pygmy Corydoras should be maintained in a suitably sized group to encourage confident social behaviour. Fine, smooth substrate is recommended to protect their sensitive barbels, while gentle filtration and adequate cover help create a stable environment for this small species.

Ethical & Operational Context

Distribution of Pygmy Corydoras through Nero Labs prioritizes organism welfare, lineage integrity, and responsible propagation of ornamental dwarf catfish. Proceeds support refinement of Corydoras husbandry protocols, nutritional research, behavioural observation, and applied ornamental aquaculture initiatives.