Delphax Corydoras Care Guide

Corydoras delphax · Freshwater Fish

Delphax Corydoras
AI-generated illustration of Delphax Corydoras
Temperature
72-79°F
pH
6.0-7.5
Adult size
~2″ (5 cm)
Suggested tank
20+ gal
Group size
6+ together
Origin
South America
Family
Callichthyidae

What Delphax Corydoras look like

Corydoras delphax, commonly known as Delphax Corydoras, is a small armored catfish characterized by its laterally compressed body, reaching a maximum adult size of approximately 2 inches (5 cm). The species exhibits sexual dimorphism, with males generally being slightly smaller and more slender than females, especially during the breeding season when females become more rotund due to egg development. The body is adorned with a pale coloration, overlaid with a distinctive pattern of dark spots that provides effective camouflage among the substrate. A notable morphological feature is the presence of a dark blotch on the dorsal fin, which is particularly pronounced in mature individuals. The fish possesses a series of bony plates known as scutes along its flanks, a flat belly adapted for a benthic lifestyle, and sensory barbels that aid in foraging. Defensive adaptations include the ability to rapidly burrow into substrate and the presence of spines on the pectoral and dorsal fins, which can deter potential predators.

Behavior & temperament

Delphax Corydoras is a social species that thrives in groups, exhibiting a strong tendency to form schools, which enhances its safety from predators. It primarily inhabits the benthic zone of freshwater environments, where it forages among the substrate for food. The species is known for its peaceful temperament, displaying minimal aggression towards tank mates, making it an ideal candidate for community aquariums. Breeding behavior involves egg scattering, with females laying adhesive eggs on surfaces such as plants or substrate, which are then fertilized by males. During the breeding process, males may exhibit increased activity and display courtship behaviors, such as chasing females and performing rapid movements.

Diet & feeding

In the wild, Corydoras delphax is an omnivore, feeding on a varied diet that includes detritus, small invertebrates, and plant matter. In captivity, it requires a balanced diet consisting of high-quality sinking pellets, supplemented with occasional live or frozen foods such as bloodworms and brine shrimp to ensure optimal health.

Behind the name

Corydoras (from Greek 'korydallos', meaning 'helmeted'; referring to the armored nature of the fish) and delphax (from Greek 'delphax', meaning 'a type of fish').

Plan your tank

Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.

Keeping Delphax Corydoras?

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