Yellowfin Corydoras Care Guide

Gastrodermus sp. C123 · Freshwater Fish

Yellowfin Corydoras
AI-generated illustration of Yellowfin 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 Yellowfin Corydoras look like

The Yellowfin Corydoras (Gastrodermus sp. C123) is a diminutive, 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 typically displaying more vibrant fin coloration and slightly smaller body sizes compared to females. Its body is adorned with a pale base coloration that contrasts with the striking warm yellow to amber hues of its fins, particularly the dorsal and caudal fins, which serve as a key distinguishing feature. The fish possesses a robust bony armor typical of the Callichthyidae family, complemented by well-developed barbels that assist in foraging along the substrate. Additionally, the presence of a lateral line system is notable, aiding in the detection of water movements and vibrations within its environment.

Behavior & temperament

Yellowfin Corydoras are social fish that thrive in groups, exhibiting a strong tendency to form schools, which provides safety in numbers against potential predators. They primarily inhabit the benthic zone of their freshwater environments, foraging along the substrate for food. During breeding, they engage in egg scattering behavior, where females release eggs over substrate or vegetation, which are then fertilized by males. Their temperament is generally peaceful, making them suitable for community tanks, although they may display slight territoriality during breeding periods or when kept in smaller groups.

Diet & feeding

In the wild, Yellowfin Corydoras are omnivorous, feeding on a varied diet that includes detritus, small invertebrates, and plant matter. In captivity, they thrive on high-quality sinking pellets, supplemented with live or frozen foods such as daphnia and bloodworms, along with occasional vegetable matter to ensure a balanced diet.

Behind the name

Gastrodermus (stomach skin); sp. (species); C123 (designates an undescribed species).

Plan your tank

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

Keeping Yellowfin Corydoras?

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