What size tank does a Freshwater Stingray need?

Freshwater Stingray needs a minimum of 125 gallons, with 188 gallons recommended. They are bottom swimmers.

Is Freshwater Stingray good for beginners?

Freshwater Stingray is rated "expert" difficulty (4/5). Best for experienced aquarists.

What fish are compatible with Freshwater Stingray?

Freshwater Stingray is semi-aggressive. Compatible tank mates include other semi-aggressive fish with similar water parameters (pH 6-7, temp 76-82°F). Give adequate territory space.

Freshwater Stingray

Potamotrygon motoro

Family: Potamotrygonidae • Origin: Various

Freshwater Stingray (Potamotrygon motoro) is a semi-aggressive other reaching 18 inches. Can be kept singly. Minimum tank: 125 gallons.

Min Tank

125 gal

Max Size

18"

Temperature

76-82°F

6-7

Lifespan

20 years

School Size

Solo OK

Swim Level

bottom

Hardness

5-15 dGH

semi-aggressiveexpertcarnivore

Is Freshwater Stingray Right for Your Tank?

Freshwater Stingray is rated "expert" (4/5) — best for experienced aquarists. They have specific requirements that make them challenging for beginners. At 125+ gallons minimum, these are large-tank fish. Make sure you have the space and filtration before committing.

Freshwater Stingray is semi-aggressive — they can live with others but may bully smaller or slower fish. Choose tank mates carefully. They are territorial — provide adequate hiding spots and maintain enough space to reduce aggression. Expected lifespan: 20 years with proper care.

Common Mistakes with Freshwater Stingray

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Relying on a heater without a thermometer

Freshwater Stingray needs 76–82°F. Heaters malfunction or drift over time — always use a separate thermometer to verify. Temperature swings of even 3–4°F can trigger stress and disease, particularly ich.

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Putting them in a tank under 125 gallons

Many beginners underestimate tank size needs. Freshwater Stingray requires at least 125 gallons — ideally 188. Cramped tanks lead to stunted growth, aggression, and poor water quality.

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Housing with peaceful nano fish

Freshwater Stingray is semi-aggressive and territorial — small, peaceful species like neon tetras, endlers, or celestial pearl danios will be stressed, bullied, or eaten. Choose tank mates that can hold their own.