Can Amazon Leaf Fish and Australian Pearl Arowana Live Together?
Keeping Amazon Leaf Fish and Australian Pearl Arowana together is possible but requires caution due to differing aggression levels and potential behavioral clashes. Provide a spacious tank of at least 800 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.
At a Glance
Can your tank handle Amazon Leaf Fish and Australian Pearl 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.
Shared setup supplies
We may earn from qualifying purchases
Behaviour & Temperament
Amazon Leaf Fish is a peaceful species (2/10), while Australian Pearl Arowana is highly aggressive (9/10). This notable difference means Australian Pearl Arowana may occasionally assert dominance over Amazon Leaf Fish.
Large aggression gap (7 points) between Amazon Leaf Fish and Australian Pearl Arowana increases stress risk for the more peaceful fish.
Amazon Leaf Fish and Australian Pearl Arowana both frequent the Top (Surface) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.
Additional behavioural considerations to keep in mind: Aggressive fish may bully and stress shy, slow-moving species.
Worth noting: Amazon Leaf Fish is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Australian Pearl 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 Amazon Leaf Fish and Australian Pearl Arowana to establish separate territories. Add plenty of line-of-sight breaks using driftwood, rocks, and dense planting to reduce territorial confrontations. A larger aquarium with ample hiding spots can help diffuse aggression and give the less dominant fish space to retreat.
Water Parameters
The safe temperature window for both species falls between 24°C and 29°C. Aim for the midpoint of this range (around 26.5°C) for optimal comfort.
Both fish can tolerate a pH between 6 and 6.8. Maintaining a stable value within this band is more important than hitting an exact number.
For general hardness, the shared comfort zone is 2–8 dGH. Regular testing will ensure conditions stay within this range.
Water care products
We may earn from qualifying purchases
Tank Setup
To house Amazon Leaf Fish and Australian Pearl Arowana together, plan for an aquarium of at least 800 litres with a minimum length of 200 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 — caves, driftwood, and dense plant clusters — so the less dominant fish can retreat when needed.
Specific environmental needs for this combination include: Leaf Litter/Blackwater, Plants - Densely covered, Driftwood (Digestion/Hiding), Plants - Floating, Smooth Gravel (Sensitive Barbels). Meeting these requirements will help both species thrive.
Both species do well with low (still water) water movement, so a standard filtration setup rated for the tank volume should suffice.
Feeding products to consider
We may earn from qualifying purchases
.webp?2026-04-25T14%3A35%3A38.022Z)
Frequently Asked Questions
Can Amazon Leaf Fish and Australian Pearl Arowana live together?
They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 800 litres), plenty of hiding spots, and watch for signs of stress or aggression.
What size tank do Amazon Leaf Fish and Australian Pearl Arowana need?
A minimum of 800 litres (tank length at least 200 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 Amazon Leaf Fish and Australian Pearl Arowana together?
Keep the aquarium between 24°C and 29°C. A target of around 26.5°C sits comfortably within both species' preferred ranges.
Are Amazon Leaf Fish or Australian Pearl Arowana aggressive?
Amazon Leaf Fish is peaceful (2/10) and Australian Pearl Arowana is highly aggressive (9/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.
What pH do Amazon Leaf Fish and Australian Pearl Arowana need?
Both species overlap in the 6–6.8 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.
How do I manage Australian Pearl Arowana's territorial behaviour?
Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Australian Pearl Arowana space to claim a territory without encroaching on the other fish's area. Adding décor that divides the tank into distinct zones works especially well.
Does Amazon Leaf Fish being nocturnal affect compatibility?
Amazon Leaf Fish 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 Amazon Leaf Fish during evening hours.
Related Comparisons
Amazon Leaf Fish & African Dwarf Frog
·
Amazon Leaf Fish & Flyspeck Hardyhead
·
Amazon Leaf Fish & Scarlet Badis
·
Amazon Leaf Fish & African Clawed Frog
·
Amazon Leaf Fish & Australian Smelt
·
Amazon Leaf Fish & Apple Snail
·
Australian Pearl Arowana & Asian Arowana
·
Australian Pearl Arowana & African Lungfish
·
Australian Pearl Arowana & Clown Knifefish
·
Australian Pearl Arowana & Florida Gar
·
Australian Pearl Arowana & Silver Arowana
·
Australian Pearl Arowana & African Butterfly Fish
·