Peppered corydoras
Corydoras paleatus
beginner careOverview
The peppered corydoras (Corydoras paleatus) is one of the oldest and most popular aquarium catfish, prized for being tough, peaceful and undemanding. Its olive-grey body is dusted with dark “peppered” mottling, and a widely available albino form exists too. Its standout trait is temperature tolerance: it happily lives cooler than most tropicals, making it a fine bottom-dweller for unheated or lightly heated tanks. Combined with a long lifespan and easy temperament, it is a classic first catfish.
Tank & water
A group of six needs at least 60 litres (15 gallons) of floor space. Peppered corys are comfortable across a wide 18–24 °C band with a gentle filter on stable, well-cycled water — a heater is optional in a warm room.
- Smooth substrate: sand or rounded gravel protects their barbels — see best aquarium sand and gravel and the substrate hub.
- Cover: driftwood, caves and plants provide security.
- Good oxygen: they appreciate steady surface movement and clean, cool water.
Feeding
As omnivores, peppered corys forage the bottom constantly. Feed sinking pellets, wafers and granules — a sinking food that reaches the substrate is key — with frozen bloodworm or daphnia as treats. See our best fish food picks and feed only what they clear. Don’t assume they live on scraps; give a proper evening ration aimed at the floor.
Tankmates
Peaceful and adaptable, peppered corys suit cooler-water communities of white cloud minnows, danios, platies and other calm fish. They shoal best with their own kind but mix well with other corys such as the bronze or albino. Avoid warm-water-only species and aggressive tankmates.
Frequently asked questions
The peppered corydoras is the definition of a beginner catfish: hardy, peaceful, long-lived and forgiving of cooler water. Keep a group of six on smooth substrate and it will forage happily for a decade.
Peppered corydoras — frequently asked questions
Do peppered corydoras need a heater?
Often not. Peppered corys are one of the more temperate corydoras and are comfortable at 18–24 °C, so they suit cooler rooms and even unheated setups in a warm home. In a tropical community tank they mix fine, but avoid pairing them with heat-loving fish like discus.
Are peppered corydoras good for beginners?
Yes — they are among the hardiest, most forgiving catfish you can buy. Give them a group of six, smooth substrate and a cycled tank and they thrive. Their tolerance of cooler, wider-ranging temperatures makes them very beginner-friendly.
Do peppered corydoras need sand?
Smooth sand or rounded gravel is best. Like all corys they sift the substrate with sensitive barbels, and sharp gravel wears those barbels down and invites infection. Fine, smooth substrate keeps them healthy and foraging.
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