Photo: Christian Dresel http://www.aquaristikfreaks.de (CC BY-SA 4.0) — via Wikimedia Commons
Pantanal Corydoras (Corydoras pantanalensis)
A large, mosaic-patterned cory from South America's vast Pantanal wetlands — stunning in a group and an excellent community bottom-dweller.
Will it live with a Pantanal Corydoras?
We compare each fish against your pantanal corydoras on temperament, size, water parameters and swimming zone. Set your tank size and filter the results.
- African Butterfly Cichlid✅ CompatibleSemi-aggressive · 8 cm · Medium care · 22–28 °C (72–82 °F)
- Compatible on the things that matter: shared water near 22–27 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Agassiz's Dwarf Cichlid✅ CompatibleSemi-aggressive · 9 cm · Medium care · 24–30 °C (75–86 °F)
- Peaceful + Semi-aggressive, but with no direct clash here, and their water overlaps around 24–27 °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 Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Ash Lipped Apisto✅ CompatibleSemi-aggressive · 7 cm · Hard care · 24–29 °C (75–84 °F)
- Compatible on the things that matter: shared water near 24–27 °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 Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Badis✅ CompatibleSemi-aggressive · 8 cm · Medium care · 22–28 °C (72–82 °F)
- Peaceful + Semi-aggressive, but with no direct clash here, and their water overlaps around 22–27 °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 Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Banded Dwarf Cichlid✅ CompatibleSemi-aggressive · 7 cm · Medium care · 24–30 °C (75–86 °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.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Black Kuhli Loach✅ CompatiblePeaceful · 8 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 Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Bleeding Heart Tetra✅ CompatibleSemi-aggressive · 7 cm · Medium care · 23–28 °C (73–82 °F)
- Peaceful + Semi-aggressive, but with no direct clash here, and their water overlaps around 23–27 °C — no size, zone or temperament conflicts.
- Keep Pantanal 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.
- Bolivian Ram✅ CompatiblePeaceful · 8 cm · Medium care · 24–28 °C (75–82 °F)
- Compatible on the things that matter: shared water near 24–27 °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 Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Bright Diamond Tetra✅ CompatiblePeaceful · 7 cm · Hard care · 24–28 °C (75–82 °F)
- Compatible on the things that matter: shared water near 24–27 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Pantanal 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.
- Brilliant Rasbora✅ CompatiblePeaceful · 9 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.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Brilliant Rasbora in a shoal of 6+ or it gets stressed and nippy.
- Buenos Aires Tetra✅ CompatibleSemi-aggressive · 7 cm · Easy care · 18–26 °C (64–79 °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 Pantanal 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.
- Burmese Loach✅ CompatiblePeaceful · 9 cm · Easy care · 22–28 °C (72–82 °F)
- Compatible on the things that matter: shared water near 22–27 °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 Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Celebes Rainbowfish✅ CompatiblePeaceful · 7 cm · Medium care · 22–28 °C (72–82 °F)
- Both are peaceful, and their water overlaps around 22–27 °C — no size, zone or temperament conflicts.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Celebes Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
- Clown Pleco✅ CompatiblePeaceful · 9 cm · Medium care · 24–28 °C (75–82 °F)
- Compatible on the things that matter: shared water near 24–27 °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 Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Cockatoo Dwarf Cichlid✅ CompatibleSemi-aggressive · 8 cm · Medium care · 24–28 °C (75–82 °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.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Dwarf Gourami✅ CompatibleSemi-aggressive · 8 cm · Medium care · 24–28 °C (75–82 °F)
- Compatible on the things that matter: shared water near 24–27 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Glass Catfish✅ CompatiblePeaceful · 8 cm · Medium care · 23–28 °C (73–82 °F)
- Both are peaceful, and their water overlaps around 23–27 °C — no size, zone or temperament conflicts.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Glass Catfish in a shoal of 6+ or it gets stressed and nippy.
- Gold Barb✅ CompatiblePeaceful · 7.5 cm · Easy care · 18–26 °C (64–79 °F)
- Compatible on the things that matter: shared water near 22–26 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Gold Barb in a shoal of 6+ or it gets stressed and nippy.
- Goldeneye Dwarf Cichlid✅ CompatibleSemi-aggressive · 8 cm · Easy care · 24–28 °C (75–82 °F)
- Peaceful + Semi-aggressive, but with no direct clash here, and their water overlaps around 24–27 °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 Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Leopard Frog Pleco✅ CompatiblePeaceful · 9 cm · Medium care · 25–30 °C (77–86 °F)
- Both are peaceful, and their water overlaps around 25–27 °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 Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Mexican Tetra✅ CompatibleSemi-aggressive · 9 cm · Easy care · 18–25 °C (64–77 °F)
- Compatible on the things that matter: shared water near 22–25 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Mexican Tetra in a shoal of 6+ or it gets stressed and nippy.
- Scissortail Rasbora✅ CompatiblePeaceful · 8 cm · Easy care · 22–27 °C (72–81 °F)
- Both are peaceful, and their water overlaps around 22–27 °C — no size, zone or temperament conflicts.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Scissortail Rasbora in a shoal of 6+ or it gets stressed and nippy.
- Splashing Tetra✅ CompatiblePeaceful · 8 cm · Medium 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.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Splashing Tetra in a shoal of 6+ or it gets stressed and nippy.
- Thick-lipped Gourami✅ CompatiblePeaceful · 9 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.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Afra Cichlid⚠️ With cautionSemi-aggressive · 10 cm · Medium care · 24–28 °C (75–82 °F)
- pH preferences only just meet (Pantanal Corydoras 6.5–7.5 vs Afra Cichlid 7.8–8.6) — target the overlap and acclimate slowly.
- Your 110 L tank is below the ~150 L this pairing really wants — crowding raises aggression.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Afra Cichlid 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 110 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
- Keep Pantanal 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.
- Bamboo Shrimp⚠️ With cautionPeaceful · 8 cm · Medium care · 22–27 °C (72–81 °F)
- Adult Bamboo Shrimp might survive with Pantanal Corydoras, but expect the young to be eaten — plant heavily.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Bandit Cichlid⚠️ With cautionSemi-aggressive · 9 cm · Medium care · 22–26 °C (72–79 °F)
- Your 110 L tank is below the ~150 L this pairing really wants — crowding raises aggression.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Bandit Cichlid in a shoal of 6+ or it gets stressed and nippy.
- Brichardi Cichlid⚠️ With cautionSemi-aggressive · 9 cm · Medium care · 24–28 °C (75–82 °F)
- pH preferences only just meet (Pantanal Corydoras 6.5–7.5 vs Brichardi Cichlid 7.8–9) — target the overlap and acclimate slowly.
- Your 110 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
- Keep Pantanal Corydoras 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 110 L tank is below the ~114 L this pairing really wants — crowding raises aggression.
- Keep Pantanal 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.
- Congo Tetra⚠️ With cautionPeaceful · 8 cm · Medium care · 22–28 °C (72–82 °F)
- Your 110 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Congo Tetra in a shoal of 6+ or it gets stressed and nippy.
- Daffodil Cichlid⚠️ With cautionSemi-aggressive · 10 cm · Medium care · 23–27 °C (73–81 °F)
- Different pH ranges (6.5–7.5 vs 7.8–9); doable if you sit in the shared band, but not ideal long-term.
- Your 110 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Demasoni Cichlid⚠️ With cautionAggressive · 9 cm · Hard care · 23–27 °C (73–81 °F)
- pH preferences only just meet (Pantanal Corydoras 6.5–7.5 vs Demasoni Cichlid 7.8–8.6) — target the overlap and acclimate slowly.
- Your 110 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Demasoni Cichlid in a shoal of 12+ or it gets stressed and nippy.
- Electric Yellow Cichlid⚠️ With cautionSemi-aggressive · 10 cm · Medium care · 23–26 °C (73–79 °F)
- pH preferences only just meet (Pantanal Corydoras 6.5–7.5 vs Electric Yellow Cichlid 7.8–8.9) — target the overlap and acclimate slowly.
- Your 110 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Johanni Cichlid⚠️ With cautionAggressive · 10 cm · Medium care · 24–28 °C (75–82 °F)
- Different pH ranges (6.5–7.5 vs 7.8–8.6); doable if you sit in the shared band, but not ideal long-term.
- Your 110 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Johanni Cichlid in a shoal of 6+ or it gets stressed and nippy.
- Lifalili Jewel Cichlid⚠️ With cautionAggressive · 9 cm · Medium care · 22–28 °C (72–82 °F)
- Your 110 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Rusty Cichlid⚠️ With cautionSemi-aggressive · 10 cm · Medium care · 24–28 °C (75–82 °F)
- Different pH ranges (6.5–7.5 vs 7.8–8.5); doable if you sit in the shared band, but not ideal long-term.
- Your 110 L tank is below the ~150 L this pairing really wants — crowding raises aggression.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Silver Tetra⚠️ With cautionPeaceful · 9 cm · Easy care · 24–28 °C (75–82 °F)
- Your 110 L tank is below the ~115 L this pairing really wants — crowding raises aggression.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Keep Silver Tetra in a shoal of 6+ or it gets stressed and nippy.
- Tanganyikan Butterfly Cichlid⚠️ With cautionSemi-aggressive · 10 cm · Hard care · 24–28 °C (75–82 °F)
- Different pH ranges (6.5–7.5 vs 8–9); doable if you sit in the shared band, but not ideal long-term.
- Your 110 L tank is below the ~130 L this pairing really wants — crowding raises aggression.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Zebra Loach⚠️ With cautionPeaceful · 9 cm · Medium care · 23–26 °C (73–79 °F)
- Your 110 L tank is below the ~115 L this pairing really wants — crowding raises aggression.
- Keep Pantanal Corydoras 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 (Pantanal Corydoras 22–27 °C vs Discus 28–31 °C).
- Your 110 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
- Keep Pantanal 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.
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.
Pantanal Corydoras care specs
- Care level
- Medium
- Breeding
- Hard
- Max size
- 8 cm (3.1 in)
- Min tank size
- 110 L (29.1 gal)
- Temperature
- 22–27 °C (72–81 °F)
- pH
- 6.5–7.5
- Hardness
- 3–12 dGH
- Lifespan
- 5–8 years
- Diet
- Omnivore
- Swim level
- Bottom
- Group size
- 6+ (shoaling)
- Family
- Callichthyidae
- Origin
- South America — northern Pantanal wetlands of Bolivia (Santa Cruz Province) and Brazil (Mato Grosso State)
What is a Pantanal Corydoras?
The Pantanal Corydoras (Corydoras pantanalensis) is a large, armoured catfish in the family Callichthyidae, first formally described by Knaack in 2001. It is named for the Pantanal — the world’s largest tropical wetland, straddling Bolivia’s Santa Cruz Province and Brazil’s Mato Grosso State — where it inhabits the shallow, slow-moving backwaters and seasonally flooded grassland pools that define that vast ecosystem.
At up to 8 cm (3.1 in), it is a noticeably bigger fish than the popular C. panda or C. pygmaeus. Its pattern is one of its selling points: a sandy-beige base is overlaid with irregular dark brown mosaic markings that form a distinctive reticulated design, and the flanks carry a subtle iridescent sheen under good lighting. Mature males develop particularly sharp mosaic contrasts. Like all cories, the Pantanal Corydoras is peaceful, entirely benthic in habit, and deeply social — it must be kept in groups. A shoal of six or more will be active and confident across the bottom of the tank; a lone individual or a pair will hide and rarely thrive.
Where does the Pantanal Corydoras come from?
This species is native to the northern Pantanal wetlands of South America — specifically Bolivia (Santa Cruz Province) and Brazil (Mato Grosso State). The Pantanal is not a single river system but a mosaic of seasonally inundated grasslands, oxbow lakes, shallow lagoons and slow tributaries connected to the Paraguay River drainage. Water chemistry in the Pantanal varies seasonally but the habitats where cories are found tend to be soft to moderately hard, slightly acidic to neutral, and relatively clear or tea-stained during dry periods.
Understanding the Pantanal’s dramatic seasonal hydrology — distinct wet and dry seasons that drive temperature, depth and current changes — is directly relevant to breeding (see below) and explains why the species responds so well to stable, well-oxygenated tanks with a gentle current.
What size tank does a Pantanal Corydoras need?
The minimum is 110 litres (29 gallons) for a group of six. That figure exists because this is a larger cory species — 8 cm (3.1 in) adults in a school of six need floor space, not height. Prioritise footprint over volume: a tank with an 80 × 40 cm or 90 × 40 cm base is far more suitable than a tall, narrow column of equal litreage. Larger is always better; a 150–200 L (40–53 gal) tank gives a larger shoal room to exhibit natural roaming behaviour.
Substrate must be fine sand or very smooth, rounded gravel. Pantanal Cories forage by sifting substrate with their snout; sharp or coarse gravel erodes the delicate barbels in weeks, and barbel damage leads to chronic bacterial infection. Dense planting along the sides and back, combined with driftwood and leaf litter, replicates the shaded, tannin-stained backwaters of their origin and significantly reduces stress. Maintain moderate flow and strong surface agitation for oxygenation — these fish come from well-oxygenated flood-pulse environments and do poorly in stagnant, warm, under-filtered setups.
What water parameters do Pantanal Corydoras need?
- Temperature: 22–27 °C (72–81 °F). The cooler end suits long-term maintenance; the warmer end is used as a spawning trigger.
- pH: 6.5–7.5, soft to neutral.
- Hardness: 3–12 dGH.
These are tolerant, workable parameters for most dechlorinated tap water in temperate regions, but stability always outranks chasing ideal numbers. Cycle the tank fully before adding fish, perform weekly water changes of 25–30 %, and avoid large, rapid temperature swings outside the breeding context. Corydoras are sensitive to elevated nitrates and ammonia — their bony, plated body does not tell you they are under stress as quickly as a fish with visible fin clamping, so good filtration and consistent maintenance matter more than they might appear to.
What do Pantanal Corydoras eat?
Pantanal Corydoras are omnivores with a strong lean toward protein-rich benthic food. In the wild they forage through soft sediment for invertebrates, detritus and organic matter. In the aquarium, the foundation of their diet should be quality sinking catfish pellets or wafers that reach the bottom before other fish intercept them. Supplement regularly with:
- Frozen or live bloodworm — an eagerly accepted protein boost
- Frozen daphnia or brine shrimp — useful for conditioning pre-spawning
- Blanched courgette or spinach — occasional vegetable matter rounds out the omnivore diet
- Micro-pellets or sinking granules — good for daily maintenance
Feed once or twice daily, offering only what is consumed within a few minutes. Do not rely on Pantanal Cories to “clean up” uneaten food from other fish — they are members of the community, not a cleanup crew, and excess food left to rot harms water quality and their barbels alike.
How do Pantanal Corydoras behave — and what fish can they live with?
Corydoras pantanalensis is fully peaceful and poses no threat to any tankmate it can fit beside. The species spends virtually all its time at the bottom level of the tank, making it a natural complement to mid- and upper-water species. A shoal of six or more will forage actively across the substrate, sometimes in tight groups, and will occasionally make rapid dashes to the surface to gulp atmospheric air — this is normal corydoras behaviour and should not cause alarm.
Good tankmates are peaceful community species that occupy different zones of the tank: tetras, rasboras, danios, peaceful cichlids in the appropriate size range, and other non-aggressive bottom-dwellers. Avoid large, predatory or highly aggressive fish; anything large enough to fit a Pantanal Cory in its mouth is a risk. Also avoid bottom-dwelling species with strongly territorial or aggressive tendencies that will compete for the same substrate space.
For a full filtered list of verified pairings, see Pantanal Corydoras tank mates.
How do you tell male from female Pantanal Corydoras?
Sexual dimorphism in C. pantanalensis follows the standard corydoras pattern and is most reliably assessed from above. Females are noticeably broader and heavier-bodied, particularly around the abdomen, which becomes conspicuous when they are carrying eggs. This rounded, wide-bodied shape is visible even in non-breeding condition once the fish are mature.
Males are slimmer and more streamlined in body profile, and in mature fish the dark mosaic patterning tends to be more sharply defined and contrasted. Sexing juveniles is not reliable; wait until fish reach at least 5–6 cm (2–2.4 in) before assessing. In a group of six or more there will usually be individuals of both sexes, which is necessary for natural spawning to occur.
How do you breed Pantanal Corydoras?
Breeding is rated Hard — achievable with effort and attention to triggers, but not casual. The key insight is seasonal simulation. In the Pantanal, the dry season produces warmer, shallower, more concentrated water, followed by heavy rains that cool and dilute it rapidly. Recreating this cycle is the primary spawning trigger:
- Raise the tank temperature gradually to the upper end of the range (26–27 °C / 79–81 °F) and reduce water changes for a couple of weeks.
- Condition the group heavily with frozen bloodworm and brine shrimp.
- Perform a large water change (30–50 %) with water that is slightly cooler (2–4 °C / 3–7 °F) than the tank — this mimics the onset of rain.
- Eggs are typically deposited on smooth surfaces: glass, broad plant leaves or spawning mops. Females carry eggs in their pelvic fin “cup” and press them to surfaces individually.
- Move eggs to a separate rearing container with gentle aeration and an antifungal agent such as methylene blue. Fry hatch in 3–5 days and are small; start with infusoria or commercial fry foods, progressing to micro-worms and baby brine shrimp as they grow.
A breeding tank of 40–60 L (10–16 gal) with a sponge filter, fine substrate and low lighting makes management considerably easier than attempting to raise fry in the community tank.
What diseases affect Pantanal Corydoras?
The most common health issues in corydoras are closely tied to husbandry failures:
- Barbel erosion and infection — the most frequent problem, caused by coarse substrate or elevated nitrates. Prevention: fine sand substrate and diligent water changes.
- Red blotch disease — bacterial haemorrhaging, typically linked to poor water quality. Prevention: maintain low nitrates, stable parameters and good filtration.
- Ich (white spot) — small white cysts across the body and fins, caused by temperature stress or introduction of infected fish. Prevention: quarantine all new fish for 2–4 weeks and keep temperatures stable.
- Fungal infections — opportunistic, usually following physical injury or barbel damage. Prevention: treat injuries promptly and remove sharp objects from the substrate.
Health note: disease diagnosis and medication dosing are outside the scope of a care profile. If you suspect illness, confirm symptoms against a reputable veterinary or fish-health source before treating. Corydoras and other armoured catfish can be sensitive to some medications, particularly at standard doses — check compatibility carefully.
How long does a Pantanal Corydoras live?
A well-kept Pantanal Corydoras lives 5–8 years in the aquarium. That range reflects realistic outcomes with proper care: fine sand substrate, clean and stable water within the 22–27 °C (72–81 °F) and pH 6.5–7.5 range, a varied omnivore diet, and the social stability of a group of at least six. Isolated or under-fed fish, or those kept on coarse substrate with poor water quality, rarely approach the upper end of that range. Give them the right conditions from the start and a group of Pantanal Cories will be a reliable, active and attractive part of a community tank for the better part of a decade.
Frequently asked questions
How large does the Pantanal Corydoras get?
Males reach around 7.5 cm (3 in) standard length; females are slightly larger at up to 8 cm (3.1 in). This makes Corydoras pantanalensis one of the bigger species in the genus, so a 110-litre (29-gallon) footprint is the realistic minimum for a proper group of six.
Can Pantanal Corydoras be bred in an aquarium?
Yes, but it requires effort. Spawning is typically triggered by mimicking the dry season — a period of warmer, shallow water followed by a large water change with slightly cooler water to simulate rainy-season conditions. Breeding is rated Hard compared to easier cories like C. paleatus or C. aeneus.
What you need to keep a pantanal corydoras
The baseline is a heated, filtered 110 L+ tank: a reliable heater to hold 22–27 °C (72–81 °F), a gentle filter that won't batter a pantanal corydoras in the current, and a tight-fitting lid. Cycle the tank fully before adding any fish.
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