Osteoglossomorph, (superorder Osteoglossomorpha), any member of what is widely believed to be the most primitive group of bony fishes.

This reputation stems from their rudimentary caudal skeleton and the lack of a set of intermuscular bones throughout the abdominal and anterior caudal regions of the body.

Osteoglossomorphs are unique among fishes in that they use their tongue as the opposing surface for the teeth when they bite into food. They are divided into two orders, Osteoglossiformes and Hiodontiformes.

Osteoglossiforms are a group of morphologically and biologically diverse forms primarily found in freshwater environments in Africa, Asia, South America, Australia, and islands of the tropical Pacific Ocean; however, a few osteoglossiform species enter slightly brackish water. In contrast, hiodontiforms occur only in North America and are probably the most primitive group of living osteoglossomorphs.

African Arowana Fish For Sale Online

African Arowana Fish, also called Heterotis niloticus. One of the most unique fish in the ancient family of fish known as “bonytongues”, the African Arowana is widespread across freshwater habitats throughout the continent, where they tend to inhabit shallow river or stream banks close to reeds or other vegetation. They are the only fish in their family known to filter feed, sifting through sand and murky water for food items like tiny crustaceans and worms. In the aquarium, juvenile fish will require a steady supply of small food items like live brine or microworms fed several times per day.

Larger fish, starting at 2-3″ in size, are usually much easier to feed and will take to prepared foods quickly. They are fairly peaceful fish in the aquarium, and will usually not harass tankmates. Like all Arowana, they are accomplished jumpers so must be kept tightly covered at all times.

Classification of African Arowana

Profile: African Arowana, African Bony-tounge
Heterotis niloticus
Synonyms: Clupisudis niloticus, Sudis niloticus
Physical description: An elongated, laterally compressed species with a somewhat level back profile. The anal and dorsal fins run along the last one-third of the body. There is a cleft between these fins and the caudal fin.” The scales are large and the head is covered with bony plates. The general coloration is a light olive to silver gray, often with a silver iridescence. The head is small, while the eye is large.
Size/Length: To 36″ (90 cm)
Similar species: None
Habitat: Western and central Africa.

Tank Requirements of African Arowana Fish For Sale

Aquarium: A tank measuring 48″ (122 cm) with a capacity from 50-70 gallons (190-266 L) is only sufficient for smaller individuals, under 16″ (41 cm) in length. Larger specimen require a tank measuring at least 60″ (152 cm) with a capacity exceeding 90 gallons (342 L). The tank should be well-covered. Use a layer of floating plants to diffuse the lighting. Leave large open swimming areas and use large plants in the background. The tank should be arranged in dark colors.
Water chemistry: pH 6.7-7.5 (7.0), 4-12 dH (9), 75-86°F (24-30°C)
Social behavior: This species is combative towards its own species and should be kept singly. Otherwise this species is relatively unaggressive towards fish that it can not swallow. Small fish may be consumed by this predatory species.
Suggested companions: Larger Mormyrids, Haplochromis and related cichlids, Xenomystus, Synodontis, Hemichromis, Cichlasoma, Astronotus, Anostomus, Leporinus, Pacus, Silver Dollars, Pimelodids, Loricarids, Knifefish.

FOOD: A plankton and filter feeder by nature that usually accepts live worms, fish, insects, and shrimps in captivity. Acclimated specimen may accept pellets.

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