Overview
The Freshwater Stingray (Motoro) (Potamotrygon motoro) is a advanced freshwater species known for its brown-tan, orange-ringed ocelli coloration. Venomous spine. Bottom.
Origin & Appearance
Origin: South America.
Colors: Brown-Tan, Orange-ringed ocelli.
Body Shape: Depressiform Wide (flat disc). Typical adult dimensions: 50.0 x 55.0 x 4.0.
Sexual Dimorphism: Moderate; males have claspers on pelvic fins.
Tank & Water Requirements
| Min Tank Size | 264 gallons |
| Temperature | 75–82°F |
| pH Range | 6–7.5 |
| Water Hardness (GH) | 3-10 |
| Bioload | very-high |
| Oxygen Demand | high |
| Plant Safe | mostly |
| Aquarium Position | Bottom |
Behavior & Activity
Bottom glider; ripples disc edges to glide across sand; buries in substrate with eyes exposed; smooth undulating movement
Speed: 40/100Aggression: 3/10nocturnal
Breeding
Difficult; live bearer (ovoviviparous)
Common Diseases
💊 Bacterial💊 parasites💊 sensitive to medications
Expert Notes
Venomous spine; needs huge tank