Motoro Ray

◎ Origin: South America (Amazon, Orinoco, Paraguay basins)
│ Size: 40–50 cm in diameter (disk)
⌬ Temperature: 24–28 °C
∷ pH: 6.5–7.5
⋄ Diet: Earthworms, shrimp, mussels, fish, sinking carnivorous pellets (frozen and fresh)
⌁ Lifespan: Approximately 15–20 years
≣ Lifestyle: Solitary or in groups (if aquarium is very spacious)
⊕ Compatibility: Peaceful but predatory. Only compatible with large, non-aggressive fish that cannot be swallowed. Avoid small, aggressive, or fin-nipping fish. Requires an extremely spacious aquarium, fine sand substrate is mandatory (no gravel), excellent filtration, very stable water, and rigorous maintenance. Sensitive to water quality and injuries.