Slate Corydoras Care Guide
Corydoras concolor · Freshwater Fish

What Slate Corydoras look like
Corydoras concolor, commonly known as the Slate Corydoras, exhibits a compact, laterally compressed body that reaches a maximum adult size of approximately 2 inches (5 cm). This species is characterized by its uniform dark slate-gray coloration, which distinguishes it from many other Corydoras species that often display lighter or patterned bodies. The Slate Corydoras possesses a robust armor of bony plates (scutes) along its flanks, providing effective protection against predators. It features prominent barbels that aid in foraging along the substrate, and its dorsal fin is relatively small and rounded, while the adipose fin is present, contributing to its streamlined appearance. Notably, this species lacks the vibrant coloration or patterns seen in other members of the genus, which may serve as a defensive adaptation by providing camouflage against the substrate in its natural habitat.
Behavior & temperament
The Slate Corydoras is a social fish that thrives in small groups, exhibiting a gregarious nature typical of the genus Corydoras. It primarily inhabits the benthic zone of slow-moving rivers and streams in South America, where it forages for food among the substrate. This species is known for its peaceful temperament, making it an excellent addition to community aquariums. During breeding, the Slate Corydoras engages in egg scattering behavior, where females release eggs onto the substrate, which are then fertilized by males. The fish exhibit minimal aggression, often displaying a calm demeanor even in the presence of other tank mates, although they may establish a loose social hierarchy within their groups.
Diet & feeding
In the wild, the Slate Corydoras 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, frozen or live foods such as bloodworms and brine shrimp, and occasional vegetable matter to ensure optimal health.
Behind the name
Corydoras (from Greek 'korydallos', meaning 'helmeted one'); concolor (from Latin 'concolor', meaning 'of the same color').
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Slate Corydoras?
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