Motoro Stingray – Potamotrygon motoro
The Motoro Stingray is a large freshwater stingray known for its rounded body shape, smooth gliding movement, and circular markings. Native to South American river systems, this species is best suited for experienced aquarists with very large aquariums and long-term care plans.
Motoro Stingrays can reach a large adult size and require stable water quality, strong filtration, open bottom space, and soft substrate. They are not beginner fish and should only be kept by aquarists prepared for advanced freshwater ray care.
Key Features
- Freshwater Stingray: Large South American bottom-dwelling ray
- Patterned Appearance: Brown, tan, orange, and dark circular markings vary by individual
- Advanced Care Species: Best for experienced aquarists with large aquariums
- Bottom-Dwelling Predator: Requires open floor space and careful tankmate selection
- Sand Substrate Recommended: Soft substrate helps protect the underside of the ray
- Local Pickup Only: Live stingrays are available for in-store purchase or local pickup only
Species Information
- Common Name: Motoro Stingray
- Scientific Name: Potamotrygon motoro
- Origin: South America
- Care Level: Advanced
- Temperament: Predatory but generally not aggressive toward suitable large tankmates
- Adult Size: Often 16–24+ inches in disc width
- Tank Level: Bottom dweller
- Recommended Tank Size: 180 gallons or larger; larger aquariums are strongly recommended for adults
Water Parameters
- Temperature: 75–82°F
- pH Range: 6.5–7.5
- Water Hardness: Soft to moderate
- Filtration: Strong filtration is required due to heavy bioload
- Water Quality: Stable water parameters and regular maintenance are very important
Tank Setup
Motoro Stingrays need large aquariums with a wide footprint and plenty of open bottom space. A soft sand substrate is recommended because rough gravel or sharp décor can injure the underside of the ray.
Use smooth décor, avoid sharp edges, and leave open areas for swimming and resting. Strong filtration, frequent water testing, and regular water changes are important because stingrays produce a heavy bioload.
Tank Mates
Motoro Stingrays should only be kept with large, compatible fish that will not nip, harass, or outcompete them. Tankmates must be chosen carefully based on adult size, temperament, and feeding behavior.
Possible tankmates may include large peaceful cichlids, silver dollars, arowanas, and larger catfish in appropriately sized aquariums. Avoid small fish that may be eaten, aggressive fish that may stress the ray, and bottom dwellers that may compete directly for space.
Diet
Motoro Stingrays are carnivores and should be offered a varied diet of appropriate meaty foods. Options may include earthworms, blackworms, shrimp, sinking carnivore foods, and pieces of fish or seafood based on the size and feeding response of the ray.
Feed carefully and remove uneaten food as needed to help maintain water quality. Large predatory fish and rays can create a heavy bioload, so filtration and maintenance should be planned accordingly.
Important Care Notes
- Freshwater stingrays have a venomous barb used for defense
- Never handle a stingray unless absolutely necessary
- Use caution during maintenance and feeding
- Maintain stable water quality and strong filtration
- Research long-term housing before purchase
- Check local and state regulations before purchasing any freshwater stingray
Freshwater Stingray Legal Notice
Freshwater stingrays may be restricted, regulated, or illegal to own in some states, counties, or municipalities. Regulations can vary by location and may change over time.
It is the buyer’s responsibility to confirm that freshwater stingray ownership is legal in their area before purchase. Check with your local Fish & Wildlife agency or state wildlife authority if you are unsure.
Frequently Asked Questions
How big do Motoro Stingrays get?
Motoro Stingrays can reach 16–24+ inches in disc width, so they require very large aquariums with wide footprints and open bottom space.
Are Motoro Stingrays beginner-friendly?
No. Motoro Stingrays are advanced fish best suited for experienced aquarists with large aquariums, strong filtration, and stable water quality.
Do Motoro Stingrays need sand?
Soft sand substrate is strongly recommended. Rough gravel or sharp décor can injure the underside of the ray.
What do Motoro Stingrays eat?
They are carnivores and may accept earthworms, blackworms, shrimp, sinking carnivore foods, and appropriate pieces of fish or seafood.
Can Motoro Stingrays live with other fish?
Yes, but only with carefully chosen large, compatible tankmates. Small fish may be eaten, and aggressive fish may stress or injure the ray.
Are freshwater stingrays legal to own?
Freshwater stingray laws vary by location. Buyers should check local and state regulations before purchase.
Can Motoro Stingrays be shipped?
No. Live stingrays are available for in-store purchase or local pickup only at Tropical Treasures Wyo in Cheyenne, Wyoming.
Available at Tropical Treasures Wyo
Motoro Stingrays are large freshwater rays for advanced aquarists with spacious aquariums, soft substrate, strong filtration, and proper long-term housing plans. Visit Tropical Treasures Wyo in Cheyenne, Wyoming, to shop freshwater stingrays, predator fish, monster fish, frozen foods, carnivore foods, filters, water conditioners, test kits, and aquarium care essentials. Live stingrays are available for in-store purchase or local pickup only.
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