Can Bristlenose Pleco and Motoro Stingray Live Together?

🟢Ideal Tank Mates

Yes, Bristlenose Pleco and Motoro Stingray are ideal tank mates. Both species share compatible water parameters and peaceful temperaments, making them well-suited for a community aquarium. A minimum tank size of 900 litres is recommended.


At a Glance

Bristlenose Pleco

Ancistrus cirrhosus

Motoro Stingray

Potamotrygon motoro

🐠Family Group
Bristlenose Pleco
Catfish
Motoro Stingray
Oddballs
Temperament
Bristlenose Pleco
Peaceful (2/10)
Motoro Stingray
Semi-Aggressive (5/10)
Temperature
✓ Compatible
Bristlenose Pleco
22–27°C
Motoro Stingray
24–28°C
pH Range
✓ Compatible
Bristlenose Pleco
6–7.5
Motoro Stingray
6–7.5
Hardness (dGH)
✓ Compatible
Bristlenose Pleco
4–15
Motoro Stingray
2–10
Water Type
✓ Compatible
Bristlenose Pleco
Freshwater Only
Motoro Stingray
Freshwater Only
Flow Preference
✓ Compatible
Bristlenose Pleco
Moderate
Motoro Stingray
High
Min Tank Volume
Combined: 900 L
Bristlenose Pleco
75 L
Motoro Stingray
750 L
Swimming Level
Shared: 1 zone
Bristlenose Pleco
Bottom
Motoro Stingray
Bottom
🏷️Behavior Tags
Bristlenose Pleco
Nocturnal
Motoro Stingray
Piscivore (Eats small/nano fish)Shrimp EaterSnail EaterFry PredatorDigger (Disturbs Substrate)

Behaviour & Temperament

Bristlenose Pleco is a peaceful species (2/10), while Motoro Stingray is moderately assertive (5/10). This modest difference means Motoro Stingray may occasionally assert dominance over Bristlenose Pleco.

Bristlenose Pleco and Motoro Stingray both frequent the Bottom (Substrate) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.

Worth noting: Bristlenose Pleco is nocturnal and will be most active after lights-out, naturally reducing daytime encounters.

Water Parameters

The safe temperature window for both species falls between 24°C and 27°C. Aim for the midpoint of this range (around 25.5°C) for optimal comfort.

Both fish can tolerate a pH between 6 and 7.5. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 4–10 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Bristlenose Pleco 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: Driftwood (Digestion/Hiding), Established Algae (Otocinclus), Sand (Sifters), Smooth Gravel (Sensitive Barbels). Meeting these requirements will help both species thrive.

Both species do well with moderate (standard) water movement, so a standard filtration setup rated for the tank volume should suffice.

Frequently Asked Questions

Can Bristlenose Pleco and Motoro Stingray live together?

Yes. Bristlenose Pleco and Motoro Stingray are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.

What size tank do Bristlenose Pleco 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 Bristlenose Pleco and Motoro Stingray together?

Keep the aquarium between 24°C and 27°C. A target of around 25.5°C sits comfortably within both species' preferred ranges.

Are Bristlenose Pleco or Motoro Stingray aggressive?

Bristlenose Pleco is peaceful (2/10) and Motoro Stingray is moderately assertive (5/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Bristlenose Pleco and Motoro Stingray need?

Both species overlap in the 6–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

Does Bristlenose Pleco being nocturnal affect compatibility?

Bristlenose Pleco is most active after lights-out, which naturally reduces daytime encounters with its tank mate. This can actually be beneficial, as both fish get undisturbed time to feed and explore. Just ensure food reaches Bristlenose Pleco during evening hours.


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