
Source: Wikimedia Commons
Osteoglossum bicirrhosum
A large osteoglossid from the Amazon basin. Its elongate silver body carries big reflective scales and it cruises just under the surface. Adults reach 90cm, so a very large tank and a secure lid are essential.
Osteoglossum bicirrhosum occurs in the Amazon basin and the Rupununi and Oyapock rivers. It reaches 90cm TL and 6kg, with large silvery scales, a pair of barbels on the lower jaw and long dorsal and anal fins running to the rear of the body. It patrols just under the surface, taking insects and small fish. FishBase gives 24-30C and Seriously Fish pH 5.0-7.5 and 2-15 dGH, so it tolerates a wide range of water chemistry, but adults need public-aquarium scale housing. Juveniles take bloodworm, small earthworms and chopped prawn; adults take fish flesh, whole prawns and mussels. Mammalian and avian meat should be avoided. Males mouthbrood the eggs and fry for roughly two months, with typical broods of 12-30. Breeding is unrecorded in home aquaria and most trade fish come from South American pond farms.
Source: Wikipedia (CC BY-SA 4.0)
The Silver Arowana lives 15+ years.
The Silver Arowana grows to Up to about 90cm.
The ideal temperature for the Silver Arowana is 24〜30℃.
Origin
South America (Amazon basin, Rupununi and Oyapock rivers)
Lifespan
15+ years
Size
Sources: Seriously Fish / FishBase
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Accepted name: Osteoglossum bicirrhosum (Cuvier, 1829)
Authority databases: FishBase
Nomenclature follows global taxonomic authority databases.
Sources: CITES Appendices (species not listed) / IUCN Red List
Regulations may change. Always verify the latest information with the relevant authorities.
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Up to about 90cm
Temperature
24〜30℃
Fish flesh, prawns, mussels, insects, frozen foods
Adults reach 90cm and cannot be housed long term in a normal home tank. Plan for public-aquarium scale volume, and cover the whole surface with a heavy lid because this fish jumps.
24-30C, pH 5.0-7.5, 2-15 dGH. Tolerant of a wide range, but heavy feeding demands powerful filtration and regular water changes.
Peaceful with anything too large to swallow, but a pecking order forms among conspecifics. Avoid other surface dwellers.
Juveniles: bloodworm, small earthworms, chopped prawn. Adults: strips of fish flesh, whole prawns and mussels. Do not feed mammal or bird meat.
The male mouthbroods eggs and fry for about two months; typical brood size is 12-30. Unrecorded in home aquaria; trade fish come from outdoor farms.
Jumping is the most common cause of loss, so use a gap-free lid. Growth is fast: size the system for the adult, not the fish you buy.
Advanced. This is an advanced-level species. It requires specialized equipment and advanced husbandry skills with precise environmental control.
The ideal temperature for Silver Arowana is 24〜30℃. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Silver Arowana is 15+ years. With proper care and nutrition, they can live a long and healthy life.
Silver Arowana typically reaches Up to about 90cm as an adult. Size may vary depending on care conditions and individual genetics.
Silver Arowana feeds on: Fish flesh, prawns, mussels, insects, frozen foods. Aim for a balanced diet with appropriate feeding frequency.
The price of Silver Arowana varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: September 17, 2026