Can Chili Rasbora and Motoro Stingray Live Together?

🔴Not Recommended

Chili Rasbora and Motoro Stingray are not recommended as tank mates due to piscivorous fish will prey on nano-sized tank mates.. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Chili Rasbora

Boraras brigittae

Motoro Stingray

Potamotrygon motoro

🐠Family Group
Chili Rasbora
Cyprinids
Motoro Stingray
Oddballs
Temperament
Chili Rasbora
Peaceful (0/10)
Motoro Stingray
Semi-Aggressive (5/10)
Temperature
✓ Compatible
Chili Rasbora
24–28°C
Motoro Stingray
24–28°C
pH Range
✓ Compatible
Chili Rasbora
4–7
Motoro Stingray
6–7.5
Hardness (dGH)
✓ Compatible
Chili Rasbora
1–10
Motoro Stingray
2–10
Water Type
✓ Compatible
Chili Rasbora
Freshwater Only
Motoro Stingray
Freshwater Only
Flow Preference
✗ No overlap
Chili Rasbora
Low
Motoro Stingray
High
Min Tank Volume
Combined: 900 L
Chili Rasbora
19 L
Motoro Stingray
750 L
Swimming Level
✓ Different zones
Chili Rasbora
MiddleTop
Motoro Stingray
Bottom
🏷️Behavior Tags
Chili Rasbora
Nano / Bite-sized (Predation Risk)Hyperactive / Fast SwimmerShy / Slow Moving (Easily Stressed)
Motoro Stingray
Piscivore (Eats small/nano fish)Shrimp EaterSnail EaterFry PredatorDigger (Disturbs Substrate)

Behaviour & Temperament

Chili Rasbora is a peaceful species (0/10), while Motoro Stingray is moderately assertive (5/10). This notable difference means Motoro Stingray may occasionally assert dominance over Chili Rasbora.

In terms of spatial distribution, Chili Rasbora prefers the Middle (Open Water) and Top (Surface) zones, whereas Motoro Stingray occupies the Bottom (Substrate) zone. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.

There is a critical concern: the Nano / Bite-sized (Predation Risk) behaviour of one fish directly conflicts with the Piscivore (Eats small/nano fish) trait of the other — piscivorous fish will prey on nano-sized tank mates..

Additional behavioural considerations to keep in mind: Shrimp eaters may also prey on very small nano fish.

Water Parameters

The safe temperature window for both species falls between 24°C and 28°C. Aim for the midpoint of this range (around 26.0°C) for optimal comfort.

Both fish can tolerate a pH between 6 and 7. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 2–10 dGH. Regular testing will ensure conditions stay within this range. An aquarium test kit is recommended for monitoring.

Tank Setup

To house Chili Rasbora and Motoro Stingray together, plan for an aquarium of at least 900 litres with a minimum length of 180 cm. This accounts for the larger species' space requirements with an additional 20 % buffer to reduce territorial tension.

Providing a mix of open swimming space and sheltered areas with rocks, driftwood, or plants will keep both species comfortable and allow natural behaviour.

Specific environmental needs for this combination include: Plants - Densely covered, Plants - Floating, Leaf Litter/Blackwater, Sand (Sifters), Smooth Gravel (Sensitive Barbels). Meeting these requirements will help both species thrive.

Chili Rasbora prefers Low (Still Water) flow while Motoro Stingray needs High (River/Stream) flow. Consider positioning filter outlets and using baffles to create zones of different current intensity within the same tank.

Find the right tank equipment

Browse tanks, décor, and equipment suited for this setup.

Diet & Feeding

Feeding time deserves special attention with this pairing. Motoro Stingray is a known shrimp eater and may prey on small invertebrates or nano fish like Chili Rasbora.

Frequently Asked Questions

Can Chili Rasbora and Motoro Stingray live together?

No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.

What size tank do Chili Rasbora and Motoro Stingray need?

A minimum of 900 litres (tank length at least 180 cm) is recommended. This provides enough space for both species to establish their own areas and reduces the likelihood of territorial disputes.

What water temperature is best for Chili Rasbora and Motoro Stingray together?

Keep the aquarium between 24°C and 28°C. A target of around 26.0°C sits comfortably within both species' preferred ranges.

Are Chili Rasbora or Motoro Stingray aggressive?

Chili Rasbora is peaceful (0/10) and Motoro Stingray is moderately assertive (5/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Chili Rasbora and Motoro Stingray need?

Both species overlap in the 6–7 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.


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