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Asian arowana scales are large (most over 2 cm in length) and have a delicate net pattern. Asian arowanas grow up to 90 cm (35 in) total length . [ 9 ] Like all Scleropages , Asian arowanas have long bodies; large, elongated pectoral fins , dorsal and anal fins located far back on the body; and a much larger caudal fin than that of their South ...
These fish are best kept with live or frozen feed and they easily outgrow the tank within eight to ten months. An aquarium with the minimum diameter of 6 by 3.5 feet (1.8 by 1.1 m) and 300 US gallons (1,100 L; 250 imp gal) is suggested as a bare minimum but 400–800 US gallons (1,500–3,000 L; 330–670 imp gal) is the best way to go. [9]
This fish has relatively large scales, a long body, and a tapered tail, with the dorsal and anal fins extending all the way to the small caudal fin, with which they are nearly fused. Its maximum total length is typically considered to be 0.9 m (3.0 ft), [3] but there are reports of individuals up to 1.2 m (3.9 ft). [2]
The black arowana has an elongated body and a tapered tail. Their maximum total length is typically considered to be 0.9 m (3.0 ft), [6] but there are reports of individuals up to 1.2 m (3.9 ft). [4] The juveniles are black with yellow markings down the length of the body, head and the tail.
Heterotis niloticus - MHNT. The African arowana or Nile arowana (Heterotis niloticus) is a species of bonytongue.Despite being called an "arowana", the African arowana is more closely related to arapaimas, the only other members in the subfamily Arapaiminae, than the South American, Asian, and Australian arowanas in the subfamily Osteoglossinae (Arapaiminae is sometimes considered to be a ...
Adults generally weigh 150–250 g (5.3–8.8 oz). [18] Discus fish exhibit no sexual dimorphism when they are under about 4 inches in size, making it difficult to distinguish between males and females at a young age. Once they reach this size, the shape of their dorsal fins begins to change, with females retaining rounder dorsal fins and males ...
It commonly reaches fork lengths up to 80 cm (2 ft 7 in) and a mass of 8–10 kg (18–22 lb). Its maximum fork length is 108 cm (3 ft 7 in), and its maximum mass is 34.5 kg (76 lb). Its maximum fork length is 108 cm (3 ft 7 in), and its maximum mass is 34.5 kg (76 lb).
A. ocellatus examples have been reported to grow to about 45 cm (18 in) in length and 1.6 kilograms (3.5 lb) in weight. [2] The wild-caught forms of the species are typically darkly coloured with yellow-ringed spots or ocelli on the caudal peduncle and on the dorsal fin . [ 6 ]