The Corydoras eques (recently reclassified as Osteogaster eques) is a highly coveted and rare species of freshwater catfish. Commonly known as the Horseman's Cory or Saddle Cory, it is prized for its striking contrast of metallic blue-green or slate body coloration and vibrant orange markings along its gills and back. Scientific Name: Osteogaster eques (formerly Corydoras eques). Origin: Native to the Brazilian Amazon basin, specifically the Rio Solimões region between Manaus and Tefé. Size: Adults typically reach 1.5 to 2.4 inches (4–6 cm). Lifespan: Generally 8 to 10 years with proper care. Social Needs: They are peaceful schooling fish and should be kept in groups of at least 5 to 6 individuals to feel secure. Tank Requirements: Substrate: Soft sand is essential to prevent damage to their delicate barbels during sifting. Parameters: Temperature 72–79°F ( 2 Tank Size: Minimum of 15–20 gallons. Feeding & Behavior Diet: They are omnivorous scavengers that prefer protein-rich foods. Suitable options include sinking catfish pellets, frozen bloodworms, and live brine shrimp. You can find various diet options and purchase specimens at specialized retailers like Dan's Fish. Activity: They are active bottom-dwellers that help clean the substrate by sifting for uneaten food, though they still require targeted feeding to thrive.
