Can Motoro Stingray and Silver Arowana Live Together?

Possible with Caution

Keeping Motoro Stingray and Silver Arowana together is possible but requires caution, though some care is needed. Provide a spacious tank of at least 1000 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

Motoro Stingray

Potamotrygon motoro

Silver Arowana

Osteoglossum bicirrhosum

🐟Family Group
Motoro Stingray
Oddballs
Silver Arowana
Oddballs
Temperament
Motoro Stingray
Semi-Aggressive (5/10)
Silver Arowana
Semi-Aggressive (6/10)
Temperature
βœ“ Compatible
Motoro Stingray
24–28Β°C
Silver Arowana
24–30Β°C
pH Range
βœ“ Compatible
Motoro Stingray
6–7.5
Silver Arowana
6–7.5
Hardness (dGH)
βœ“ Compatible
Motoro Stingray
2–10
Silver Arowana
1–12
Water Type
βœ“ Compatible
Motoro Stingray
Freshwater Only
Silver Arowana
Freshwater Only
Flow Preference
βœ“ Compatible
Motoro Stingray
High
Silver Arowana
Moderate
Min Tank Volume
Combined: 1000 L
Motoro Stingray
750 L
Silver Arowana
1000 L
Swimming Level
βœ“ Different zones
Motoro Stingray
Bottom
Silver Arowana
Top
🏷️Behavior Tags
Motoro Stingray
Piscivore (Eats small/nano fish)Shrimp EaterSnail EaterFry PredatorDigger (Disturbs Substrate)
Silver Arowana
Piscivore (Eats small/nano fish)Jumper (Lid Required)Hyperactive / Fast SwimmerGenerally AggressiveTerritorial (Defends specific area)
Stocking calculator

Can your tank handle Motoro Stingray and Silver Arowana?

Compatibility is only part of the answer. Test both fish with your real tank size, current stock, and maintenance needs to see if you have enough space and a safe stocking level before you add them.

Motoro Stingray
Silver Arowana
Test both in my tank

Behaviour & Temperament

Motoro Stingray is a moderately assertive species (5/10), while Silver Arowana is moderately assertive (6/10). This modest difference means Silver Arowana may occasionally assert dominance over Motoro Stingray.

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

Worth noting: Silver Arowana is a known jumper, so a tight-fitting lid is essential.

To improve the chances of a peaceful coexistence in this community tank: Provide a significantly larger tank (at least 50% more volume than the minimum) to allow both Motoro Stingray and Silver Arowana to establish separate territories. Add plenty of line-of-sight breaks using driftwood, rocks, and dense planting to reduce territorial confrontations.

Water Parameters

The safe temperature window for both species falls between 24Β°C and 28Β°C. Aim for the midpoint of this range (around 26.0Β°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 2–10 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Motoro Stingray and Silver Arowana together, plan for an aquarium of at least 1000 litres with a minimum length of 240 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.

Because this pairing requires extra vigilance, include plenty of hiding spots β€” caves, driftwood, and dense plant clusters β€” so the less dominant fish can retreat when needed.

Specific environmental needs for this combination include: Sand (Sifters), Smooth Gravel (Sensitive Barbels). Meeting these requirements will help both species thrive.

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

Frequently Asked Questions

Can Motoro Stingray and Silver Arowana live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 1000 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do Motoro Stingray and Silver Arowana need?

A minimum of 1000 litres (tank length at least 240 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 Motoro Stingray and Silver Arowana together?

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

Are Motoro Stingray or Silver Arowana aggressive?

Motoro Stingray is moderately assertive (5/10) and Silver Arowana is moderately assertive (6/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Motoro Stingray and Silver Arowana need?

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

How do I manage Silver Arowana's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Silver Arowana space to claim a territory without encroaching on the other fish's area. Adding dΓ©cor that divides the tank into distinct zones works especially well.


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