Motoro Stingray

Potamotrygon motoro is one of the most iconic freshwater stingrays in the aquarium hobby. Native to the rivers and floodplains of the Amazon, Orinoco, and Paraná basins, this species features a distinctive pattern of cream-to-orange ocelli on a dark brown dorsal disc. Adults can reach 50 cm disc diameter and require aquariums of 1,500 litres or more. The species is strictly bottom-dwelling and needs a fine sand substrate to bury in without damaging its ventral surface. Feeding consists of whole prey items such as earthworms, shrimp, mussels, and fish fillets. Water quality must be pristine, with large weekly water changes and powerful biological filtration. The venomous caudal spine poses a real danger to keepers and must be respected at all times. Legal restrictions on keeping stingrays vary by jurisdiction—check local laws before acquisition.

Requires a minimum 1,500 L tank with fine sand substrate. Powerful filtration with 8–10× turnover per hour is essential. Weekly 30–40 % water changes mandatory. Feed whole prey: earthworms, mussels, shrimp, fish fillets. Handle with extreme care—venomous caudal spine can cause severe injury. Check local legislation before purchase.