
Source: Wikimedia Commons
Potamotrygon motoro
A South American freshwater stingray with yellow-ringed ocelli over the disc. The tail carries a venomous sting that causes severe pain. It reaches 50cm disc width and is listed in CITES Appendix III.
Potamotrygon motoro is a freshwater stingray found across the Amazon, Orinoco, Parana-Paraguay and Uruguay basins. Yellow-ringed ocelli cover the disc, and the highly variable patterning has produced P numbers and trade names such as blue and orange. It occupies sand banks, the shallows of large rivers and slow tributaries over mud or sand. Seriously Fish recommends 24-26C, pH 6.0-7.5 and 1-12dGH with a 240 x 90cm base, about 1620 litres. Its high metabolism requires feeding at least twice a day. Reproduction is matrotrophic viviparity, the pups nourished by histotrophe secreted in the uterus, with litters of one to eight. It is listed in CITES Appendix III by Brazil, as a genus listing, and by Colombia.
Source: Wikipedia (CC BY-SA 4.0)
The Ocellate River Stingray grows to Up to 50cm disc width.
FishBase records 50cm disc width and a maximum weight of 34.2kg, while Seriously Fish gives 900mm in length.
The ideal temperature for the Ocellate River Stingray is 24〜26℃.
Origin
South America (Amazon, Orinoco, Parana-Paraguay and Uruguay basins)
Size
Up to 50cm disc width
Temperature
24〜26℃
Sources: FishBase / Seriously Fish
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Sources: CITES Appendix III (Brazil, as a Potamotrygon spp. genus listing, and Colombia) / CITES Appendices / IUCN Red List
Regulations may change. Always verify the latest information with the relevant authorities.
Find listings for this species
Strips of fish, prawn, mussel, earthworms, frozen foods
Seriously Fish gives a 240 x 90cm base, about 1620 litres. Decor is not essential; if used, choose bogwood or smooth rocks too heavy to be shifted and leave as much open space as possible. Dim lighting is preferable.
Seriously Fish gives 24-26C, pH 6.0-7.5 and 1-12dGH; FishBase records 24-26C and pH 5.0-6.0 in the wild. It is a heavy waste producer and intolerant of nitrate, so generous filtration and frequent water changes are essential.
A top predator in the wild and unsafe with most species, yet it also fails to thrive alongside very aggressive or territorial companions. The best tankmates are peaceful, too large to be eaten and occupy the upper water.
Carnivorous, feeding on fish and aquatic invertebrates. Its high metabolism calls for feeding at least twice a day: bloodworm, Tubifex, Artemia and krill for juveniles, and whole mussels, cockles, prawns, squid, fresh fish and earthworms for adults.
Viviparous, with the pups nourished by histotrophe secreted from uterine villi; litters are one to eight. Several species have been bred regularly in recent years. Males of this species are among the most violent when in spawning mood and females can be badly injured, so watch closely and be ready to separate them.
The venomous tail sting causes severe pain; FishBase records the species as traumatogenic, so always know where the ray is before working in the tank. It is listed in CITES Appendix III, so international trade requires the exporting country's documentation.
Advanced. This is an advanced-level species. It requires specialized equipment and advanced husbandry skills with precise environmental control.
The ideal temperature for Ocellate River Stingray is 24〜26℃. Avoid sudden temperature changes and maintain a stable environment.
Ocellate River Stingray typically reaches Up to 50cm disc width as an adult. Size may vary depending on care conditions and individual genetics.
Ocellate River Stingray feeds on: Strips of fish, prawn, mussel, earthworms, frozen foods. Aim for a balanced diet with appropriate feeding frequency.
The price of Ocellate River Stingray varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: September 16, 2026