Description:
The Longfin Peppered Corydoras Catfish is a beloved member of the armoured catfish family, ranks among the top choices for home freshwater aquariums due to its ease of care and hardy nature. These small, shy fish can live up to a decade in captivity, Inhabiting various aquatic environments, from slow-moving rivers to stagnant ponds.
Longfin Peppered Corydoras boast a stunning display of overlapping scales for protection, accentuated by their graceful, flowing side and dorsal fins. These catfish exhibit a variety of colour variations, including green, bronze, and albino, while typically adorned with numerous black spots across their bodies, hence earning them the name Pepper Corydora.
To distinguish between males and females, males are typically smaller and more slender, whilst the females are larger and appear more rounded when looking at them from above.
Peppered Corydoras display a remarkable ability to thrive even in stagnant water, thanks to their unique air-breathing capability. Their charming behaviour includes darting to the water's surface for a quick gulp of air before returning to the bottom, making them delightful additions to aquariums.
Temperament:
A social creature by nature, these catfish thrive best when kept in small groups of six or more, where it can engage in shoaling behaviour and explore its surroundings with confidence. While it prefers soft, acidic water conditions, it has demonstrated adaptability to a range of water parameters, making it a hardy and resilient fish suitable for various setups.
With its gentle temperament and peaceful demeanour, these catfish make an excellent addition to community aquariums, where it can coexist harmoniously with other calm species. Avoid housing it with overly aggressive tankmates, particularly those that may compete for substrate space.
Peppered Corydoras are a captivating and sociable fish prized for its distinctive appearance, ease of care, and beneficial role in maintaining aquarium cleanliness. With proper care and attention, it thrives as a delightful and enriching presence in freshwater aquariums.
Diet:
Peppered Corydoras play a significant role in maintaining the cleanliness of the aquarium substrate by scavenging for leftover food and detritus. While they may not excel as algae eaters, they more than compensate with their diligent scavenging behaviour, contributing to the overall health of the aquarium ecosystem.
Feeding these catfish is relatively straightforward, as they readily accept a diverse diet of prepared, live, and frozen foods. However, care should be taken to ensure that food reaches the bottom of the tank, as faster-swimming mid-water fish may consume it before it sinks.
High-quality sinking foods such as Xtreme Bottom Wafers are an excellent staple, ensuring Corydoras receive proper nutrition where they feed naturally. They can also be supplemented with foods like Xtreme Community Crave Flakes or Xtreme Wrigglers, provided enough reaches the substrate.
Breeding Behaviour:
Corydoras catfish have a unique spawning process. During courtship, the male positions himself in a T-pose beneath the female. She then lays a few eggs, holding them in a “basket” made with her pelvic fins. The male fertilises these eggs, and the female swims off to stick them to a safe surface, like the aquarium glass, plant leaves (often hardy plants like Anubias), or smooth decorations. This process repeats until she has laid anywhere between 15 and 300 eggs in total, corydora can typically breed once or twice a month.
Corydoras are known to eat their own eggs, as will other fish in the tank, so it’s best to either remove the adults or collect the eggs. To move them safely, use an old credit card or ID card to gently scrape them off the glass, then place them into a breeder box, hatching container, or separate tank with plenty of gentle aeration. A small dose of methylene blue can help prevent fungal growth.
The eggs hatch in about 3–5 days. Once hatched, the fry stay still and live off their yolk sacs for another 2–3 days. After that, they become free-swimming and need very fine food, such as freshly hatched baby brine shrimp, microworms, or powdered fry food.
Keep the water clean and well-oxygenated, doing small daily water changes to prevent ammonia spikes. As the fry grow, introduce slightly larger foods and provide hiding spots with plants like Java moss or hairgrass. Once they reach around 2.5–3 cm they can be moved back into the main tank with the parents.
Care Guide:
- Species – Corydoras paleatus Longfin
- Common Name – Longfin Peppered Corydora
- Origin – South America
- Temperament – Peaceful
- Diet – Omnivore
- Minimum Tank Requirement – 75 litres
- Tank Level – Bottom dweller
- Care Level – Easy
- PH Range – 6.0 – 7.0
- Temperature – Tropical 22–26°C
- Breed Type – Egg layer – usually on plant leaves and aquarium glass
- Size – Grows to approximately 7cm
- Sex – Un-sexed
Acclimation Guide:
- Float the Bag: Place the unopened bag in your tank and let it float for 15–20 minutes. This lets the water inside the bag slowly match your tank’s temperature.
- Turn Off the Lights: Keep the aquarium lights off during this process. It helps keep things calm and prevents sudden temperature changes.
- Add a Bit of Tank Water: After floating, carefully open the bag and pour out about half the water into a sink or bucket (not into your tank). Then, slowly add small amounts of your tank water into the bag over 15–20 minutes. This helps your fish adjust to the new water conditions.
- Gently Move the Fish: Use a fish net to gently move your fish from the bag into the tank. Try not to pour the bag water into your tank — this helps keep your aquarium clean and healthy.
- Watch and Wait: It’s normal for fish to hide or act a bit shy at first. Keep an eye on them, and avoid doing a water change for the first 24 hours to give them time to settle in.
- Feeding Behaviour: New fish may not eat any food for the first 12-24 hours whilst it is settling into its new environment, please allow some time before feeding as the food may go to waste.
For more detailed steps and tips, feel free to visit our Acclimation Guide in our Education tab to help make the transition as smooth as possible for your new fish.
Longfin Peppered Corydoras
Longfin Peppered Corydoras
Size Guide
Adult size 7cm
Selected size —
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Shipping & Live Arrival Guarantee
Shipping & Live Arrival Guarantee
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Tank Requirements - Quick Overview
Tank Requirements - Quick Overview
If your aquarium is new, it may not be fully cycled yet. Newly set up tanks benefit from being fully cycled before adding fish, this process helps your new fish stay happy and healthy. Depending on your tank size, cycling can take up to 4–6 weeks or even longer, but there are ways to speed up this process to just a few days! If your tank has already been running for a while, you’re already good to go! Not sure what cycling means? Check out our guide on The Nitrogen Cycle for an easy explanation on what it is, and why it is important for your aquarium to thrive.
🐟 Want expert tips for your aquarium? Beginners can start with How to set up your aquarium, while everyone can check out Aquarium Maintenece & Care for ongoing tank tips!
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How We Package & Ship Your Fish - Video
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Tank Mate Compatibility
✅ Compatible With
- Tetras — Neon, Cardinal, Rummy-nose, Ember, and Bleeding Heart Tetras are excellent choices that occupy higher tank levels
- Rasboras — Harlequin and Chili Rasboras are peaceful, compatible tank mates
- Livebearers — Guppies, Platies, and Mollies work well, though monitor feeding to ensure Corydoras get enough food
- Other Bottom Dwellers — Bristlenose Plecos and Kuhli Loaches are good companions with minimal conflict
- Gouramis — Dwarf and Honey Gouramis are peaceful top-level fish that coexist well
- Invertebrates — Amano Shrimp, Mystery Snails, Nerite Snails, and Rabbit Snails are generally ignored by Corydoras
- Other Corydoras — Different species can be mixed, though for best social behaviour keep 6 or more of the same species together
❌ Avoid or Use Caution
- Large or Aggressive Cichlids — Oscars, Jack Dempseys, Texas Cichlids, and Green Terrors can eat or fatally injure Corydoras
- Predatory Catfish — Large predatory catfish will readily eat Corydoras
- Tiger Barbs — Known fin and barbel nippers that can damage the delicate barbels Corydoras rely on for sensing food
- Crayfish — Will catch and kill Corydoras, particularly at night when Crayfish are most active
- Goldfish — Prefer cooler water than most tropical Corydoras and produce excessive waste. Note: Peppered Corydoras are an exception as they tolerate cooler temperatures
Frequently Asked Questions
Do Corydoras eat fish waste off the bottom of the tank?
This is a common misconception, no fish eats fish waste, and Corydoras are no exception. What they do excel at is stirring up debris and waste that has settled on the substrate, helping it become suspended in the water column where it can be picked up by your filter. They are also excellent at cleaning up any uneaten food before it breaks down and affects water quality. Regular water changes and good filtration remain essential for a clean and healthy aquarium.
Do Corydoras need to be kept in groups?
Yes, Corydoras are a shoaling species and should be kept in groups of six or more. In smaller numbers they can become stressed and withdrawn, spending most of their time hiding. In a group they will actively explore, forage, and interact together, displaying their natural behaviours and adding real movement and life to your aquarium.
What do Corydoras eat?
Corydoras are omnivorous scavengers that feed primarily from the substrate. High-quality sinking foods such as Xtreme Bottom Wafers make an excellent staple diet. They can also be supplemented with Xtreme Community Crave Flakes or Xtreme Wrigglers, provided enough food reaches the bottom before faster mid-water fish consume it. Occasional live or frozen foods such as baby brine shrimp or bloodworms are a great treat and help condition them for breeding.
What substrate is best for Corydoras?
Sand is the ideal substrate for Corydoras as it allows them to sift and forage naturally without risk of injury to their sensitive barbels. Any soft, fine substrate works well. Avoid sharp or coarse gravel, as it can damage their barbels over time, leading to infection and long-term health issues.
Can I keep Corydoras with other fish?
Yes, Corydoras are peaceful community fish and coexist well with a wide range of species. Avoid housing them with aggressive or large predatory fish that may harass or eat them. They occupy the bottom of the tank, so they pair particularly well with mid and top-dwelling species that won't compete for the same space or food.
What size tank do I need for Corydoras?
A minimum of 75 litres is recommended for a group of five Corydoras. They are active fish that appreciate open swimming space along the substrate, so tank footprint (length and width) matters more than height. Longer tanks are preferable over tall, narrow ones.
Do Corydoras need a heater?
Yes. Sterbai Corydoras are a tropical species and require a stable water temperature of 24–28°C. They are one of the more temperature-tolerant corydoras species, but a reliable heater and thermometer are still essential for long-term health.
Do Corydoras need a specific water flow?
Corydoras appreciate gentle to moderate water flow that mimics their natural river habitat. Good oxygenation is important, but avoid strong, direct flow that pushes them around the tank. A filter with a spray bar or a sponge filter works well to distribute flow evenly without creating excessive current.
Are Corydoras suitable for beginners?
Yes, Corydoras are one of the best beginner catfish. They are hardy, peaceful, easy to feed, and add real activity to the lower levels of a community tank. As long as they are kept in a group, provided with appropriate substrate, and housed with compatible tank mates, they are straightforward and rewarding to keep.
Do Corydoras need a lid on my aquarium?
Yes, a secure lid is recommended. Corydoras are known to occasionally dart to the surface to gulp air, which is a normal behaviour as they have a modified intestine that allows them to absorb atmospheric oxygen. While this is completely natural, an open top increases the risk of them jumping out of the tank, particularly if they are startled or the water quality drops. A well-fitted lid keeps them safe without restricting surface gas exchange.
A Note on Our Fish:
Fish may vary slightly in colour, size, and pattern from those pictured or shown in images and videos. This is natural across all fish, whether bred in-house, locally sourced, or imported, as individual variation is part of what makes each fish unique!
Every fish is quality checked for health, behaviour, and appearance before leaving our fish room. Fish that are dispatched as juveniles will grow into their adult size and colouration over time with a good balanced diet and proper care.
