The Black Diamond Stingray (Potamotrygon leopoldi) is a rare and visually stunning freshwater stingray known for its jet-black body and white spots.
Scientific Name
Potamotrygon leopoldi
Habitat
Native to the Xingu River Basin in Brazil, South America. Prefers sandy and rocky substrates in slow-moving freshwater rivers.
Conservation
Not officially endangered, but threatened by habitat destruction, overfishing, and illegal wildlife trade. Protected under Brazilian environmental laws.
Lifespan
Can live 15–20 years or more with proper care in captivity.
Fun Fact
Highly sought-after in the aquarium trade for its elegance, Black Diamond Stingrays are also considered symbols of status in some cultures.
Diet
Carnivorous – feeds on crustaceans, worms, small fish, and insects. In captivity, accepts frozen foods and high-protein sinking pellets.
Average Size
Can reach a disc width of 24–30 inches (60–75 cm) and grow up to 36 inches (90 cm) in length.
Location / Placement info
Displayed in the Coastal Reef Exhibit, near the Ocean-View Tunnel
FAQ
What is the lifespan of a Black Diamond Stingray?
They can live for 20–25 years in captivity with proper care.
What do they eat?
They are carnivores, feeding on shrimp, worms, fish fillets, and sinking meaty pellets.
Are they aggressive?
No, they are generally peaceful, but can eat smaller tankmates.
What is the ideal tank size?
A minimum of 200 gallons with a wide base is required for adult rays.
Do they need a specific environment?
Yes, they need soft sandy substrate, excellent filtration, and oxygen-rich water.
How big do they grow?
They can grow up to 24–30 inches (60–75 cm) in diameter.
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