Skunk Corydoras Catfish

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Corydoras arcuatus - Elwin, 1938
Skunk Corydoras Catfish

An excellent choice for the peaceful community tank. Aaron Norman


All of the many “Cory” species are delightful, modestly sized catfish that are perfect for a beginner’s aquarium. This species is a classic Corydoras and a favorite of many freshwater aquarists. These are “armored” catfishes with two main rows of overlapping, bony plates on their bodies. Corydoras catfishes are schooling species that should be kept in groups of at least three to best observe their natural behaviors.

Family: Callichthyidae

Other common name(s):

  • Skunk Cory
  • Skunk Corydoras

Native range:

Habitat: Like other members of its genus, this catfish can be seen continuously and industrially searching the substrate for food. The best choices for bottom coverings are either fine-grade or rounded gravel. Provide hiding places, such as driftwood, rocks or inverted flowerpots.

Maximum length: 6.4 cm (3 in)

Minimum aquarium size: 38 L (10 gal)

Water: Freshwater 22 °C (72 °F) - 26 °C (79 °F)

General swimming level: Bottom.


Omnivore. Considered scavengers, these fishes are often neglected when it comes to feeding. They must be fed in the morning and just after the lights are extinguished at night to ensure optimum health and prepare them for spawning. Will accept a wide variety of meaty and herbivore aquarium fare, including flakes and pellets, especially those specifically designed for corys.

Aquarium Compatibility

Their constant grubbing keeps the substrate will stirred and free of stagnant pockets.


The larger female carries fertilized eggs between her ventral fins and deposits them on glass panes, leaves or stones. Fry are easily raised in a well-established tank with a layer of mulm.

Reference: 101 Best Tropical Fishes
Image credit: AN
Text credit: KW