Can Asian Arowana and Banded Leporinus Live Together?

Possible with Caution

Keeping Asian Arowana and Banded Leporinus 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

Asian Arowana

Scleropages formosus

Banded Leporinus

Leporinus fasciatus

🐠Family Group
Asian Arowana
Oddballs
Banded Leporinus
Characins
Temperament
Asian Arowana
Aggressive (8/10)
Banded Leporinus
Aggressive (7/10)
Temperature
βœ“ Compatible
Asian Arowana
26–30Β°C
Banded Leporinus
22–28Β°C
pH Range
βœ“ Compatible
Asian Arowana
6–7.5
Banded Leporinus
5.5–7.5
Hardness (dGH)
βœ“ Compatible
Asian Arowana
1–12
Banded Leporinus
2–15
Water Type
βœ“ Compatible
Asian Arowana
Freshwater Only
Banded Leporinus
Freshwater Only
Flow Preference
βœ“ Compatible
Asian Arowana
Moderate
Banded Leporinus
High
Min Tank Volume
Combined: 1000 L
Asian Arowana
1000 L
Banded Leporinus
380 L
Swimming Level
βœ“ Different zones
Asian Arowana
Top
Banded Leporinus
MiddleBottom
🏷️Behavior Tags
Asian Arowana
Piscivore (Eats small/nano fish)Jumper (Lid Required)Aggressive to same species/look-alikesTerritorial (Defends specific area)Hyperactive / Fast Swimmer
Banded Leporinus
Plant DestroyerFin NipperJumper (Lid Required)Hyperactive / Fast SwimmerAggressive to same species/look-alikes
Stocking calculator

Can your tank handle Asian Arowana and Banded Leporinus?

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.

Asian Arowana
Banded Leporinus
Test both in my tank

Behaviour & Temperament

Asian Arowana is a semi-aggressive species (8/10), while Banded Leporinus is semi-aggressive (7/10). This modest difference means Asian Arowana may occasionally assert dominance over Banded Leporinus.

Both Asian Arowana and Banded Leporinus are highly aggressive, increasing the risk of violent confrontations.

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

Worth noting: Asian 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 Asian Arowana and Banded Leporinus to establish separate territories. Add plenty of line-of-sight breaks using driftwood, rocks, and dense planting to reduce territorial confrontations. Keep fin nippers in larger groups to distribute nipping behaviour among conspecifics rather than tank mates.

Water Parameters

The safe temperature window for both species falls between 26Β°C and 28Β°C. Aim for the midpoint of this range (around 27.0Β°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 2–12 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Asian Arowana and Banded Leporinus 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: Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding). 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 Asian Arowana and Banded Leporinus 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 Asian Arowana and Banded Leporinus 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 Asian Arowana and Banded Leporinus together?

Keep the aquarium between 26Β°C and 28Β°C. A target of around 27.0Β°C sits comfortably within both species' preferred ranges.

Are Asian Arowana or Banded Leporinus aggressive?

Asian Arowana is semi-aggressive (8/10) and Banded Leporinus is semi-aggressive (7/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Asian Arowana and Banded Leporinus 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.

Will Banded Leporinus nip Asian Arowana's fins?

Banded Leporinus is a known fin nipper. If Asian Arowana has long or flowing fins, there is a real risk of fin damage. Keeping Banded Leporinus in a larger group can help redirect nipping behaviour toward conspecifics.

How do I manage Asian Arowana's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Asian 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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