Photo: Pia Helminen (CC BY 2.5) — via Wikimedia Commons
Skunk Corydoras (Corydoras arcuatus)
A sleek, black-striped cory with an eye-catching lateral stripe — an understated gem for the bottom of any peaceful community tank.
Will it live with a Skunk Corydoras?
We compare each fish against your skunk corydoras on temperament, size, water parameters and swimming zone. Set your tank size and filter the results.
- Axelrod's Cory✅ CompatiblePeaceful · 5 cm · Easy care · 23–28 °C (73–82 °F)
- Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Axelrod's Cory in a shoal of 6+ or it gets stressed and nippy.
- Bandit Corydoras✅ CompatiblePeaceful · 5 cm · Easy care · 22–27 °C (72–81 °F)
- Compatible on the things that matter: shared water near 22–26 °C, workable temperaments, and no predator-and-prey size gap.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Bandit Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Blue Turbo Snail✅ CompatiblePeaceful · 5 cm · Medium care · 25–30 °C (77–86 °F)
- Compatible on the things that matter: shared water near 25–26 °C, workable temperaments, and no predator-and-prey size gap.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Checkered Barb✅ CompatiblePeaceful · 5 cm · Easy care · 20–25 °C (68–77 °F)
- Compatible on the things that matter: shared water near 22–25 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Checkered Barb in a shoal of 6+ or it gets stressed and nippy.
- Cherry Barb✅ CompatiblePeaceful · 5 cm · Easy care · 23–27 °C (73–81 °F)
- Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Cherry Barb in a shoal of 6+ or it gets stressed and nippy.
- Chocolate Gourami✅ CompatiblePeaceful · 5 cm · Hard care · 25–30 °C (77–86 °F)
- Both are peaceful, and their water overlaps around 25–26 °C — no size, zone or temperament conflicts.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Chocolate Gourami in a shoal of 6+ or it gets stressed and nippy.
- Cochu's Blue Tetra✅ CompatiblePeaceful · 5 cm · Medium care · 22–28 °C (72–82 °F)
- Compatible on the things that matter: shared water near 22–26 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Cochu's Blue Tetra in a shoal of 8+ or it gets stressed and nippy.
- Firehead Tetra✅ CompatiblePeaceful · 5 cm · Medium care · 24–28 °C (75–82 °F)
- Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Firehead Tetra in a shoal of 8+ or it gets stressed and nippy.
- Five-banded Barb✅ CompatiblePeaceful · 5 cm · Easy care · 23–27 °C (73–81 °F)
- Both are peaceful, and their water overlaps around 23–26 °C — no size, zone or temperament conflicts.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Five-banded Barb in a shoal of 6+ or it gets stressed and nippy.
- Forktail Blue-eye✅ CompatiblePeaceful · 5 cm · Easy care · 22–28 °C (72–82 °F)
- Both are peaceful, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Forktail Blue-eye in a shoal of 6+ or it gets stressed and nippy.
- Half-striped Penguin Tetra✅ CompatiblePeaceful · 5 cm · Medium care · 23–28 °C (73–82 °F)
- Compatible on the things that matter: shared water near 23–26 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Half-striped Penguin Tetra in a shoal of 6+ or it gets stressed and nippy.
- Harlequin Rasbora✅ CompatiblePeaceful · 5 cm · Easy care · 23–28 °C (73–82 °F)
- Both are peaceful, and their water overlaps around 23–26 °C — no size, zone or temperament conflicts.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Harlequin Rasbora in a shoal of 6+ or it gets stressed and nippy.
- Honey Gourami✅ CompatiblePeaceful · 5 cm · Easy care · 22–28 °C (72–82 °F)
- Both are peaceful, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Horseman Cory✅ CompatiblePeaceful · 5 cm · Medium care · 22–26 °C (72–79 °F)
- Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Horseman Cory in a shoal of 6+ or it gets stressed and nippy.
- Japanese Trapdoor Snail✅ CompatiblePeaceful · 5 cm · Easy care · 10–28 °C (50–82 °F)
- Compatible on the things that matter: shared water near 22–26 °C, workable temperaments, and no predator-and-prey size gap.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Julii Corydoras✅ CompatiblePeaceful · 5 cm · Easy care · 23–26 °C (73–79 °F)
- Both are peaceful, and their water overlaps around 23–26 °C — no size, zone or temperament conflicts.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Julii Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Masked Corydoras✅ CompatiblePeaceful · 5 cm · Easy care · 22–28 °C (72–82 °F)
- Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Masked Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Mystery Snail✅ CompatiblePeaceful · 5 cm · Easy care · 20–28 °C (68–82 °F)
- Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Panda Corydoras✅ CompatiblePeaceful · 5 cm · Medium care · 20–26 °C (68–79 °F)
- Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Panda Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Rummy-nose Tetra✅ CompatiblePeaceful · 5 cm · Medium care · 23–29 °C (73–84 °F)
- Compatible on the things that matter: shared water near 23–26 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Rummy-nose Tetra in a shoal of 6+ or it gets stressed and nippy.
- Silvertip Tetra✅ CompatibleSemi-aggressive · 5 cm · Easy care · 22–28 °C (72–82 °F)
- Compatible on the things that matter: shared water near 22–26 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Silvertip Tetra in a shoal of 6+ or it gets stressed and nippy.
- Spotfin Betta✅ CompatibleSemi-aggressive · 5 cm · Medium care · 23–28 °C (73–82 °F)
- Peaceful + Semi-aggressive, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Stoliczka's Barb✅ CompatiblePeaceful · 5 cm · Easy care · 20–26 °C (68–79 °F)
- Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Wine Red Betta✅ CompatibleAggressive · 5 cm · Medium care · 24–28 °C (75–82 °F)
- Peaceful + Aggressive, but with no direct clash here, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- African Butterfly Cichlid⚠️ With cautionSemi-aggressive · 8 cm · Medium care · 22–28 °C (72–82 °F)
- Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Amano Shrimp⚠️ With cautionPeaceful · 5 cm · Easy care · 18–28 °C (64–82 °F)
- Skunk Corydoras may eat Amano Shrimp or pick off its shrimplets — a densely planted tank with moss gives them a fighting chance.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Amazon Puffer⚠️ With cautionPeaceful · 8 cm · Medium care · 23–28 °C (73–82 °F)
- Your 75 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Amazon Puffer in a shoal of 6+ or it gets stressed and nippy.
- Ash Lipped Apisto⚠️ With cautionSemi-aggressive · 7 cm · Hard care · 24–29 °C (75–84 °F)
- Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Black Ruby Barb⚠️ With cautionSemi-aggressive · 6 cm · Easy care · 22–26 °C (72–79 °F)
- Your 75 L tank is below the ~100 L this pairing really wants — crowding raises aggression.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Black Ruby Barb in a shoal of 6+ or it gets stressed and nippy.
- Bleeding Heart Tetra⚠️ With cautionSemi-aggressive · 7 cm · Medium care · 23–28 °C (73–82 °F)
- Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Bleeding Heart Tetra in a shoal of 6+ or it gets stressed and nippy.
- Bright Diamond Tetra⚠️ With cautionPeaceful · 7 cm · Hard care · 24–28 °C (75–82 °F)
- Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Bright Diamond Tetra in a shoal of 8+ or it gets stressed and nippy.
- Buenos Aires Tetra⚠️ With cautionSemi-aggressive · 7 cm · Easy care · 18–26 °C (64–79 °F)
- Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Buenos Aires Tetra in a shoal of 6+ or it gets stressed and nippy.
- Colombian Tetra⚠️ With cautionSemi-aggressive · 6.5 cm · Easy care · 24–28 °C (75–82 °F)
- Your 75 L tank is below the ~114 L this pairing really wants — crowding raises aggression.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Colombian Tetra in a shoal of 6+ or it gets stressed and nippy.
- Dwarf Chain Loach⚠️ With cautionPeaceful · 6 cm · Medium care · 24–29 °C (75–84 °F)
- Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
- Ghost Shrimp⚠️ With cautionPeaceful · 4 cm · Easy care · 18–28 °C (64–82 °F)
- Adult Ghost Shrimp might survive with Skunk Corydoras, but expect the young to be eaten — plant heavily.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Ghost Shrimp in a shoal of 6+ or it gets stressed and nippy.
- Humpbacked Tetra⚠️ With cautionSemi-aggressive · 5 cm · Hard care · 24–28 °C (75–82 °F)
- Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Humpbacked Tetra in a shoal of 8+ or it gets stressed and nippy.
- Melon Barb⚠️ With cautionPeaceful · 7 cm · Easy care · 22–28 °C (72–82 °F)
- Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Melon Barb in a shoal of 8+ or it gets stressed and nippy.
- Morse Code Corydoras⚠️ With cautionPeaceful · 5 cm · Medium care · 23–26 °C (73–79 °F)
- Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Morse Code Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Rounded Filament Barb⚠️ With cautionPeaceful · 7 cm · Medium care · 22–27 °C (72–81 °F)
- Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Rounded Filament Barb in a shoal of 6+ or it gets stressed and nippy.
- Tiger Barb⚠️ With cautionSemi-aggressive · 7 cm · Easy care · 22–28 °C (72–82 °F)
- Your 75 L tank is below the ~95 L this pairing really wants — crowding raises aggression.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Tiger Barb in a shoal of 6+ or it gets stressed and nippy.
- Discus⛔ Not recommendedPeaceful · 20 cm · Hard care · 28–31 °C (82–88 °F)
- Temperature needs don't overlap (Skunk Corydoras 22–26 °C vs Discus 28–31 °C).
- Your 75 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Discus in a shoal of 6+ or it gets stressed and nippy.
- German Blue Ram⛔ Not recommendedPeaceful · 6 cm · Hard care · 27–30 °C (81–86 °F)
- Temperature needs don't overlap (Skunk Corydoras 22–26 °C vs German Blue Ram 27–30 °C).
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
Compatibility is computed from each species' care data — a strong starting point, not a guarantee. Individual temperament varies, so always introduce new fish slowly and watch them.
Skunk Corydoras care specs
- Care level
- Easy
- Breeding
- Medium
- Max size
- 5 cm (2 in)
- Min tank size
- 60 L (15.9 gal)
- Temperature
- 22–26 °C (72–79 °F)
- pH
- 6–7.5
- Hardness
- 2–12 dGH
- Lifespan
- 5–8 years
- Diet
- Omnivore
- Swim level
- Bottom
- Group size
- 6+ (shoaling)
- Family
- Callichthyidae
- Origin
- Western Amazon basin — Juruá River, Javari River and nearby blackwater streams in Brazil, Peru and Colombia
What is a Skunk Corydoras?
The Skunk Corydoras (Corydoras arcuatus) is a small, armoured catfish named for the bold black arc that sweeps from its snout, over the eye and across the top of the body to the base of the tail — a marking that instantly recalls the dorsal stripe of a skunk. Adults reach about 5 cm (2 in) and carry a bright, silvery body that catches the light as the shoal works across the substrate. Formerly catalogued as Brochis arcuatus, the species now sits firmly in genus Corydoras alongside more than 180 relatives.
The Skunk Cory is classified as an easy-care fish, and that reputation is well earned. It is tolerant of a reasonable range of water conditions, peaceful with virtually any tank-mate, and practically self-directing as long as it has clean water, a sand substrate and the company of its own kind. A shoal of six or more moving purposefully across the bottom of a planted tank is one of the most calming sights in the hobby.
Where do Skunk Corydoras come from?
Wild Skunk Corydoras are found in the western Amazon basin — specifically the Juruá River, the Javari River and neighbouring blackwater and clearwater streams that cross Brazil, Peru and Colombia. These rivers run through dense rainforest; the water is typically soft, low in minerals and gently acidic, often tinted amber by tannins leaching from leaf litter and submerged wood. The substrate is fine sand or silt, the current is mild, and there is abundant shade from overhanging canopy.
Understanding this origin shapes every care decision. The fish evolved for soft, slightly acidic water at moderate tropical temperatures, not the hard, alkaline conditions found in some municipal supplies. Most captive-bred specimens tolerate a wider range than wild-caught fish, but mimicking the blackwater character of their home rivers — with sand, tannins and low light — produces noticeably more active, confident behaviour.
What size tank do Skunk Corydoras need and how should it be set up?
The minimum tank size for a proper shoal of six is 60 litres (16 gal); an 80–100 L (21–26 gal) tank gives more floor space and makes water quality easier to maintain, which is always the better choice. Floor area matters far more than depth: a longer, shallower footprint gives the shoal more territory to patrol.
Key setup priorities:
- Substrate: Fine sand or smooth rounded gravel is non-negotiable. Corydoras probe the substrate constantly with sensitive barbels; coarse or sharp gravel wears those barbels down and creates entry points for bacterial infection. Pool filter sand or commercial fine-grain aquarium sand both work well.
- Filtration: Corydoras like clean water but not a strong current. A sponge filter, canister with a spray-bar diffuser, or hang-on-back with baffled output keeps water moving without blasting the fish around.
- Décor: Driftwood, smooth river pebbles, broad-leafed plants (such as Anubias or Amazon swords) and a scattering of dried oak or Indian almond leaves all help. The leaves release tannins that soften the water slightly and provide cover.
- Lighting: Moderate to low. Skunk Corydoras are most active under subdued light or at dawn and dusk. Floating plants like water lettuce or frogbit dim the tank naturally.
- Lid: Corydoras occasionally make rapid dashes to the surface to gulp air; a lid prevents accidental jumps.
What water parameters do Skunk Corydoras need?
- Temperature: 22–26 °C (72–79 °F). This is cooler than many tropical community fish, so check compatibility with planned tank-mates.
- pH: 6.0–7.5. Soft to neutral is ideal; hard, alkaline water above pH 7.8 stresses them over time.
- Hardness: 2–12 dGH. Soft water aligns with their Amazon origin; most captive-bred fish handle moderate hardness reasonably well.
- Ammonia / Nitrite: Zero, always. Corydoras are sensitive to dissolved waste; a fully cycled tank is the single most important prerequisite.
- Nitrate: Keep below 20 ppm with weekly partial water changes of 25–30%.
Stability is as important as the exact figures. Gradual acclimatisation when introducing new fish and consistent maintenance routines prevent the kind of sudden swings that weaken immune systems.
What do Skunk Corydoras eat?
Skunk Corydoras are omnivores that forage continuously across the bottom, picking up anything edible they find. In an aquarium this translates to a varied diet of sinking foods:
- Sinking wafers or pellets — algae wafers and sinking catfish pellets form a reliable staple.
- Frozen or live foods — frozen bloodworms, daphnia, tubifex and brine shrimp are eagerly taken and support condition and colour. Offer these two or three times a week.
- Blanched vegetables — small pieces of courgette (zucchini), cucumber or spinach are occasionally accepted.
Feed at or after lights-out when the fish are most active and surface-feeding tank-mates have finished eating. Drop food directly onto the substrate or use a feeding tube so it reaches the bottom before other fish intercept it. Avoid letting uneaten food decompose — remove leftovers after a few hours to protect water quality.
Are Skunk Corydoras peaceful and what fish can live with them?
Skunk Corydoras are entirely peaceful; they ignore everything that is not food and show no territorial behaviour. The main considerations for compatibility are practical rather than behavioural:
- Temperature overlap: At 22–26 °C (72–79 °F), Skunk Corydoras run cooler than some tropical species. Bettas, discus and other warm-water fish are not ideal long-term room-mates.
- Space competition: In a 60 L tank, other bottom-dwellers compete for the same zone. Plan the bottom layer carefully and avoid overcrowding it.
- Safety: Avoid any fish large enough to swallow a 5 cm cory, and avoid aggressive species that will nip fins or harass resting fish.
Classic compatible tank-mates include small tetras (ember tetras, neon tetras, rummy-nose tetras), rasboras, dwarf gouramis, smaller livebearers, and other peaceful Corydoras species that share the temperature range. Peaceful invertebrates such as cherry shrimp and nerite snails co-exist without issue; adults are too large for the corydoras to bother.
For a full list of tested pairings, see Skunk Corydoras tank mates.
Keep a minimum group of six. A lone Skunk Corydoras, or a pair, will hide, refuse to eat reliably and decline steadily. Six or more means the fish move openly, interact constantly and display natural shoaling behaviour. Eight to ten is better still.
How do you tell male from female Skunk Corydoras apart?
Sexual dimorphism in Skunk Corydoras is subtle but consistent when fish are adult-sized. Females are noticeably wider-bodied and slightly larger overall; this is most obvious when viewing the fish from above — a ripe female looks appreciably plumper than her tank-mates. Males are slimmer and slightly smaller, with a more streamlined ventral profile.
Sexing juveniles is not reliable. Wait until fish are at least 3–4 cm to make a reasonable assessment. In a group of six you will almost certainly have at least one of each sex without selecting for it.
How do Skunk Corydoras breed?
Spawning in captivity follows the typical Corydoras pattern and is achievable for an intermediate keeper prepared to put in some effort — hence the medium difficulty rating.
Conditioning: Feed both sexes heavily on high-protein live and frozen foods for two to three weeks before attempting to breed.
Trigger: A large (30–50%) water change with slightly cooler water — dropping temperature by 2–3 °C to the lower end of the range — mimics the rainy season onset that triggers spawning in the wild. Repeat if the first change does not prompt behaviour within a few days.
Spawning: The classic Corydoras T-position sees the female grip the male’s ventral fins with her mouth while he releases sperm; she simultaneously deposits a small clutch of sticky eggs onto a cleaned surface — typically the glass, a broad leaf or a flat stone. The pair may repeat this dozens of times over a session, laying 10–200 eggs in total.
Eggs and fry: Eggs hatch in three to five days at 24–26 °C (75–79 °F). Remove adults after spawning if using a breeding tank, or move eggs to a separate rearing container. First foods for free-swimming fry are infusoria, commercial fry powder and newly hatched brine shrimp nauplii.
What diseases are common in Skunk Corydoras and how are they prevented?
Corydoras are hardy fish that rarely succumb to disease when water quality is maintained. The most common problems are:
- Barbel erosion and infection: Caused by sharp substrate or accumulated organic waste in the substrate bed. Prevention is straightforward: sand substrate, regular vacuuming and zero tolerance for ammonia or nitrite.
- Red blotch disease: Red patches or sores on the body, typically a bacterial infection triggered by poor water quality or skin damage. Frequent water changes and a clean substrate prevent it.
- Ich (white spot): The usual small-white-dots presentation seen across tropical fish. Maintain stable temperatures and quarantine all new fish for at least two weeks before introducing them to the display tank.
- Fungal infections: Often secondary to injury or barbel erosion. Clean water and undamaged fins are the best defence.
Skunk Corydoras are sensitive to many common aquarium medications, particularly those containing copper or certain antibiotics — read product labels carefully before treating any tank that houses them.
Health note: Medication dosing and disease diagnosis are beyond the scope of a care profile. For sick fish, confirm symptoms against a reputable veterinary or fish-health source before medicating, and treat Corydoras with caution due to their sensitivity to many drugs.
How long do Skunk Corydoras live?
With consistent care, Skunk Corydoras live 5–8 years. That is a meaningful commitment for a fish under 5 cm long, and it underlines why setup quality matters: the fish you buy from a shop will be living in your tank for the better part of a decade if conditions are right. The foundations are the same ones that matter for all Corydoras — a sand substrate, a fully cycled tank, soft-to-neutral water in the 22–26 °C (72–79 °F) range, quality varied food and, above all, a proper shoal of six or more to keep the group socially healthy and stress-free.
Frequently asked questions
Is the Skunk Corydoras the same as the Skunk Cory sold in shops?
Yes — "Skunk Cory" and "Arched Corydoras" both refer to Corydoras arcuatus (formerly listed as Brochis arcuatus). Note that fish sold under this name before 2019 were often the similar-looking Corydoras granti, so double-check the body shape and stripe angle if species accuracy matters.
How many Skunk Corydoras should I keep together?
Keep a minimum of six. Corydoras are strongly shoaling fish and individuals kept in smaller numbers are visibly stressed, hide constantly and are more prone to illness. Larger groups of eight or more display far more natural foraging and social behaviour.
What you need to keep a skunk corydoras
The baseline is a heated, filtered 60 L+ tank: a reliable heater to hold 22–26 °C (72–79 °F), a gentle filter that won't batter a skunk corydoras in the current, and a tight-fitting lid. Cycle the tank fully before adding any fish.
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