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Haraldschultzi Corydoras
Corydoras haraldschultzi
Animalia›Chordata›Actinopterygii
📍 South America
A large, reticulated corydoras from the Araguaia River in Brazil, featuring a white body covered with an intricate network of dark brown to black spots and lines that form a maze-like pattern. Often confused with Corydoras sterbai, it prefers cooler water (68–75°F), groups of 6+, and a fine sandy substrate.
Care Guide
Diet
Haraldschultzi corydoras are bottom feeders that consume sinking pellets, algae wafers, and frozen foods like bloodworms and brine shrimp. Feed small amounts once daily, ensuring food reaches the substrate where they forage. Supplement with vegetable matter occasionally to support digestive health.
Behavior
These peaceful catfish are nocturnal and spend most of their time on the substrate sifting through sand for food and detritus. They are social and should always be kept in groups of 6 or more to reduce stress and encourage natural schooling behavior. They are generally inactive during the day but become more active at dusk and during feeding times.
Breeding
Breeding Haraldschultzi corydoras in captivity is difficult and rarely achieved in home aquariums. Successful breeding requires pristine water conditions, cooler temperatures (68–72°F), and a well-established group with proper conditioning. Fry are extremely small and require infusoria or liquid fry food, making rearing challenging for most hobbyists.
Tank Mates
Similar peaceful bottom-dweller with compatible water parameters and non-aggressive behavior
Small, peaceful mid-water fish that won't compete for bottom space or disturb corydoras
Peaceful schooling fish with similar water temperature requirements and non-aggressive temperament
Compatible bottom-dweller that shares similar peaceful nature and algae-eating habits
Generally safe but larger corydoras may occasionally consume smaller shrimp; provide plenty of hiding spots
Common Diseases
Ich (Ichthyophthirius multifiliis)
White spots on body and fins, rapid breathing, rubbing against substrate
Raise temperature gradually to 79°F, perform daily water changes, use ich medication; maintain excellent water quality
Fin Rot
Frayed or deteriorating fins, discoloration at fin edges, lethargy
Improve water quality with frequent changes, reduce stocking density, use antibacterial medication if severe
Barbel Erosion
Deterioration or loss of barbels, difficulty feeding, reduced bottom-sifting behavior
Ensure fine sandy substrate (not gravel), maintain pristine water conditions, provide quality sinking foods
Bacterial Infection
Sores on body, cloudy eyes, loss of appetite, unusual behavior
Perform large water changes, maintain optimal temperature and pH, use broad-spectrum antibacterial treatment if needed
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Water it likes
- ph
- 6.0–7.5
- ammonia
- 0 ppm
- nitrate
- <20 ppm
- temperature
- 72–79°F (22–26°C)