Pearl Jardini Arowana

The (Scleropages jardinii), also known as the Northern Jardini Arowana, is a striking Australian-native freshwater predator recognised for its bold pearlescent spotting and powerful presence. Each large metallic scale features a distinct pearl-like highlight, giving this species its premium appearance.

More assertive than Silver Arowanas, Pearl Jardinis are best suited to experienced aquarists with very large, well-maintained aquariums. When provided with space and stable conditions, they become a commanding centrepiece fish with impressive surface-swimming behaviour.

Physical Characteristics

Adult Size: Up to 90 cm (35 inches)

Coloration: Bronze to olive base with strong pearlescent spotting

Body Shape: Long, muscular, torpedo-shaped

Distinct Features: Large metallic scales, powerful jaw, surface-feeding mouth

Sexual Dimorphism: Not visually distinguishable

Behaviour & Temperament

Temperament: Semi-aggressive to aggressive

Tank Level: Surface

Behaviour: Highly territorial, especially as it matures Suitable Tank Mates

Very large, robust fish only

Large catfish species

Large, non-aggressive cichlids

Only in extremely large systems with careful planning

Avoid:

Small fish (will be eaten)

Other Arowanas unless in massive systems

Fin-nipping or aggressive species

Breeding Information

Spawning Type: Mouthbrooder

Parental Care: Male incubates eggs and fry in the mouth

Breeding Notes: Rare in captivity due to size and aggression

Special Considerations

More aggressive than Silver Arowanas

Extremely powerful jumper — secure lid is essential

Requires pristine water quality and strong filtration

Long lifespan and adult size require long-term commitment

Recommended for experienced aquarists only

Aquarium Requirements

Minimum Tank Size: 1,000 litres (larger strongly recommended)

Water Temperature: 24–30°C

pH Range: 6.0–7.5

Water Hardness: 2–15 dGH

Substrate: Bare bottom or smooth gravel

Decor: Open swimming space with minimal obstructions

Filtration: Very strong, high-capacity filtration

Lighting: Moderate

Diet & Feeding

Diet Type: Carnivore

Recommended Foods:

High-quality floating Arowana pellets

Frozen prawns, fish fillets, insects

Occasional live foods where legal

Feeding Frequency: Once daily (juveniles may need more frequent feeding)

Product Photo is for reference only. Exact fish may vary in size and colour