Peppered Cory

Corydoras ‘paleatus’ now Hoplisoma paleatus

The Peppered Corydoras (Corydoras paleatus), discovered by Charles Darwin in the 1830s, is a highly popular, peaceful freshwater fish native to South America. Growing to about 5–7 cm (2–3 inches) long, they are easily recognized by their dark, mottled "peppered" spots against a grey or iridescent body.

Care Overview

Tank Size: A minimum of 38-75 L (10-20 gallons) is recommended, with 20-gallon longs preferred for their bottom-dwelling, shoaling behavior.

Water Parameters:

• Temperature: 22°C - 26°C
• pH: 6.0 - 7.5
• Water Hardness: 4–12 dGH

Substrate: Soft, fine-grained sand is crucial. Coarse gravel can damage or wear down their delicate barbels (whiskers), which are used to sift through the sand for food.

Tank Mates: Extremely peaceful. They thrive best when kept in schools of at least 6 individuals of the same species. Good companions include tetras, rasboras, and other small, non-aggressive fish.

Diet: Omnivores that require a varied diet. They are not efficient algae eaters and should be fed high-quality sinking pellets, flakes, and frozen/live foods like bloodworms or brine shrimp.

Behavioral Highlights

Schooling/Shoaling: They are highly social and will constantly snuffle around the tank floor together looking for sustenance.

Hardiness: Known as a very hardy fish, they are relatively tolerant of fluctuating water parameters and are occasionally kept in slightly colder, temperate tanks.

Armored Scales: Rather than traditional scales, they possess bony plates that protect them from larger predators in the wild.

Varieties

While the standard grey and speckled Corydoras paleatus is the most common, they are also available in longfin variations and completely white or yellowish albino morphs. Albino peppered corys will readily school with the standard coloration, as they are biologically the same species.