This is a video showing our 150 gallon Potamotrygon Motoro (Freshwater Motoro Stringray) aquarium. I talk about all the specifics of the setup and also feed him some raw shrimp. This video will give you an idea of how to keep Freshwater Stingrays, if you are interested in doing so. Our Motoro Stingray is approximately 10″ disk size and 16-18″ long or so. The main diet is the shrimp shown in the video but he also eats small fish and worms, when it rains hard I gather the worms from my yard. I do not use pesticides though, if you do, you should probably not feed your fish the worms from your yard. If you watch the video all the way there is some bonus underwater footage near the end. The camera I used is an Olympus Waterproof Stylus Tough.
The Potamotrygon Motoro Stingray comes from South America, specifically the Orinoco, Parana, Uruguay and Amazon river systems. They live life primarily on the bottom, searching for food in the substrate. They eat mostly crustaceans as well as small fish. They can reach up to 3′ long and around 30lbs! Truly a River Monster at that size.
It is one of the most interesting fish to keep, but also very challenging. They can sting you and cause a great deal of pain, as well as a trip to your local hospital. So you must exercise extreme caution when working in the tank. They also require extremely clean water, so you must do big water changes often. They will not tolerate high levels of Nitrate, so unless you keep a ton of live plants in your aquarium there is no way around it. You must do water changes to keep your Stingray healthy.
——————————————– Motoro Ray Profile / Care Sheet ———————————————–
Scientific Name – Potamotrygon Motoro
Common Name – Motoro Singray, Ocellate River Stingray, Ocellated Stingray
Regions of Origin – South America – Amazon River Basins (Uruguay, Orinoco, Parana)
Temperament – These guys are 100% predators but peaceful most of the time. You’ll want a species only tank or to keep them with perhaps some surface predators, such as Silver Arowana. Even if they can’t eat a fish, they will try. Make sure any Arowana you attempt to keep are large enough to not become a snack.
Maximum Size – Up to 3′ in the wild, although rarely seen. Most specimens in captivity are smaller, rarely making it over the 2′ mark.
Diet – Smaller Fish, Worms, Shrimp, Crustaceans
Water – 78-84 degrees, Stable PH is VERY important (6.0 preferred but as long as it is stable, higher PH can be tolerated.)
Potamotrygon Motoro – Motoro Singray – Ocellate River Stingray – Ocellated Stingray