Peppered Corydoras
Corydoras paleatus
Callichthyidae
About
The peppered corydoras is a hardy armored catfish from the cool, slow-flowing streams and floodplains of southern Brazil, Uruguay, Paraguay and Argentina, named for the dark mottled speckling scattered across its pale body. Unusually among corydoras it comes from a subtropical range, so it prefers noticeably cooler water than most tropical community fish and is one of the few catfish that thrives in an unheated tank. Peaceful and endlessly busy, it patrols the bottom on sensitive barbels and is far more confident kept in a shoal.
Care
Keep a shoal of 6 or more over soft, clean sand in cooler, well-oxygenated water with gentle flow. Very forgiving and beginner-friendly, but sharp gravel and dirty substrate will damage its barbels.
Diet
Omnivorous scavenger that forages the substrate; offer sinking wafers and micro-pellets plus frozen or live daphnia, brine shrimp and bloodworm, making sure food reaches the bottom.
Tankmate compatibility
Gets along with (22)
Possible with care (199)
Avoid (50)
Computed by the AquaSage engine for a spacious reference tank — always check the full verdict for your exact setup in the calculator.
Telling males from females
What works for this species, most reliable first.
- Width from aboveStrong · from about 8 months, once they are adult-sized
Corydoras are sexed from directly above, never from the side. Look down at the group while they rest on the sand.
- Bristles and cheek spinesA hint only · from about a year
Male plecos grow odontodes — spiny growths on the cheeks and along the leading pectoral rays. Bristlenose males additionally grow branching tentacles across the snout and over the top of the head.
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Frequently asked questions
- What tank size does a Peppered Corydoras need?
- A Peppered Corydoras needs an aquarium of at least 75 litres (19.8 US gallons) with a footprint at least 60 cm (23.6 in) long — for this species, swimming length matters as much as raw volume.
- What water parameters does a Peppered Corydoras need?
- Peppered Corydoras does best at 16–26 °C (60.8–78.8 °F), pH 6–7.8 and a general hardness of 2–15 °dGH.
- What group size does a Peppered Corydoras need?
- Peppered Corydoras is a social species — keep a group of at least 6 so natural behaviour emerges and stress stays low.
- Is the Peppered Corydoras suitable for beginners?
- Yes — Peppered Corydoras is one of the easier species to keep and forgives typical first-tank mistakes, as long as the aquarium is cycled and maintained.