Arowana are legendary freshwater predators prized for their shimmering scales and dragon-like presence. Understanding arowana facts, care, diet, breeding, and behavior helps keepers support their long-term health and natural activity.
These fish grow large, demand stable conditions, and respond best to consistent routines. The table below summarizes key care parameters to guide both new and experienced arowana keepers.
| Parameter | Juvenile | Adult | Notes |
|---|---|---|---|
| Minimum Tank Size | 200–300 gallons | 500+ gallons | Larger tanks reduce stress and support natural swimming patterns. |
| Temperature Range | 26–30°C (79–86°F) | 26–30°C (79–86°F) | Avoid sudden swings; stable temperature supports appetite and immunity. |
| Water pH | 6.0–7.0 | 6.5–7.5 | Match local water chemistry and adjust gradually when needed. |
| Filtration Requirement | High turnover canister | Heavy biological and mechanical | Strong surface flow mimics moving water and aids digestion. |
| Diet Type | Carnivore: pellets, feeder fish, crustaceans | Carnivore: live, frozen, high-protein prepared | Variety supports color intensity and growth. |
Essential Arowana Care Practices
Arowana care focuses on water quality, space, and predictable routines. These fish are sensitive to ammonia and nitrite, so robust filtration and regular testing are non-negotiable.
Tank design should include low lighting, gentle flow, and plenty of open swimming space. Avoid sharp decor, and provide secure covers since arowana are powerful jumpers.
Daily and Weekly Tasks
Check temperature, inspect equipment, and observe behavior daily. Perform partial water changes weekly and clean or replace mechanical media as needed to maintain clarity and flow.
Balanced Arowana Diet and Feeding
A varied, high-protein diet is central to arowana diet success. Use quality floating pellets as a base, and supplement with appropriately sized live or frozen foods such as shrimp, bloodworm, and small fish.
Feeding frequency shifts with age; younger fish may take multiple small meals, while adults do well with one or two substantial feedings per day. Remove uneaten food promptly to protect water quality.
Food Safety and Nutrition
Avoid feeder fish from unreliable sources due to disease risk. Instead, opt for frozen formulations and occasional live prey that meet hygiene standards while delivering natural stimulation.
Responsible Arowana Breeding Techniques
Breeding arowana in captivity is rare and demands advanced setup, careful pair selection, and close observation. Successful arowana breeding usually starts with a compatible pair in a spacious, species-only tank.
Condition both fish with high-quality nutrition, maintain stable parameters, and provide flat spawning surfaces or gentle substrate depressions. The male often guards the eggs and fry, so ensure he can move freely and safely.
Parental Care and Early Rearing
Fry emerge small and require infusoria or liquid fry food, progressing to newly hatched brine shrimp as they grow. Separate aggressive siblings if needed and monitor growth to prevent cannibalism.
Key Takeaways for Arowana Success
- Maintain large, stable tanks with powerful filtration and consistent water tests.
- Feed a varied, high-protein carnivore diet and avoid risky feeder fish.
- Provide secure covers and open swimming space to reduce stress and support natural movement.
- Approach breeding only with a compatible, well-conditioned pair and diligent parental monitoring.
- Commit to long-term care, regular maintenance, and ongoing observation for best results.
FAQ
Reader questions
How often should I test water for my arowana?
Test water at least twice weekly for ammonia, nitrite, nitrate, and pH. More frequent checks help during tank changes or if you notice appetite or behavior shifts.
Can arowana live with other large fish?
Generally no; arowana are predatory and may view tankmates as food. Keep them in species-only setups to reduce stress and injury risk.
What size tank is required for a full-grown arowana?
A single adult needs 500 gallons or more, with extra space for turning and swimming. Larger volumes improve stability and support long-term health.
Are arowana suitable for beginners?
Not recommended for beginners due to their size, sensitivity, and specialized care. Experienced keepers with proper setup are better prepared to meet their needs.