Julii Corydoras (Corydoras julii)

Species verification: Fish sold as Julii Corydoras are often confused with Three-Stripe Corydoras (Corydoras trilineatus). The exact identity of this store's shipment has not been independently verified; check the supplier identification and fish markings before advertising the fish as confirmed true C. julii.

The Julii Corydoras is a peaceful, social freshwater bottom-dwelling catfish known for a finely spotted body and dark facial pattern; fish sold as Julii Corydoras can be confused with Three-Stripe Corydoras, so the scientific identification for this trade listing requires supplier confirmation. These active fish are most comfortable in groups of their own kind.

Julii Corydoras Care

• Scientific name: Corydoras julii (traditional aquarium-trade name; scientific classifications may change)
• Adult size: Approximately 2–2.5 inches
• Recommended aquarium: 20 gallons or larger, with plenty of usable bottom area for a group
• Water temperature: 72–78°F
• pH: Approximately 6.0–7.5; avoid sudden changes and maintain stable water quality
• Temperament: Peaceful, social and active
• Group size: At least 6 of the same species or compatible form; larger groups are even better
• Diet: Omnivore; offer quality sinking catfish pellets or wafers plus appropriately sized frozen or live foods
• Care level: Easy to moderate with an established aquarium

Tank Mates

Choose peaceful community fish that tolerate the same temperature and water conditions. Avoid aggressive or predatory fish, and avoid crowding the aquarium bottom.

Aquarium Setup & Substrate

Provide a fully cycled, well-filtered aquarium with soft sand or smooth, rounded fine gravel to protect sensitive barbels. Avoid sharp, jagged substrate. Include plants or driftwood for cover, open foraging areas, and good oxygenation. Keep the substrate clean and perform regular water changes.

Feeding & Group Behavior

Cory catfish are not a substitute for aquarium cleaning. Feed sinking foods directly to the group and check that each fish receives enough food. They may briefly dart to the surface to gulp air, which is normal, but persistent surface activity warrants a water-quality and oxygen check.

In-Store Availability & Livestock Policy

In-store pickup only — no live fish shipping. Please inspect and select your fish before purchase. All live fish sales are final once they leave the store. Our team is happy to answer aquarium-care and troubleshooting questions.