How to identify the species of silver arowana?

Methods to identify Silver Arowana:

1. It is not difficult to identify the male and female Silver Arowana. The main difference is: the male fish has a long pelvic fin tip, and the female fish is sexually mature. The abdomen is distended.

2. A beautiful A can be seen on the gill of the female fish, and the arrow part is shorter than that of the male fish. On the contrary, the male fish has an irregular A shape and a longer arrow part. Moreover, the entire head of the female fish looks smaller than that of the male fish. Because the male fish needs to contain fish eggs, the head is slightly larger. This is the first point. ?

3. The body size of the arowana (full length). Male fish of the same age are longer than females, although this is limited by the size of the tank and the environment. However, the average family setting is about 1800 by 600 by 900. In this case, the growth rate and size of male and female fish will be very different. There is no difference in the growth rate from 15cm to 20cm. The growth rate of female fish will slow down significantly starting from 35cm. It is possible to lay eggs at around 38cm, and there are also examples of egg laying.

Let’s be clear here. Just because a fish is fat doesn’t mean it’s big. It’s based on length. Many dragon friends have this experience. The dragon fish eats normally and is fed high-nutrition and high-end food every day, but the dragon fish grows very slowly. On the contrary, the weight and width of the dragon fish continue to increase. In this case, it is very likely that female fish. So here is a reminder to everyone, don’t feed too much food to prevent your fish from becoming hyperlipidemia. ?

4. It is difficult to distinguish the male and female of the Little Silver Dragon, and no one in China has successfully reproduced each other.

Osteoglossum bicirrhosum (scientific name: Osteoglossum bicirrhosum), also known as silver arowana, is distributed in the Amazon River Basin. It is an important catch locally and is also one of the main ornamental fish in Asia. Very popular due to Feng Shui requirements.

The body of Silver Arowana is long and belt-shaped, with flat sides and a fan-shaped tail. The dorsal and anal fins are belt-shaped and extend backward to the base of the caudal peduncle. The lower jaw is more protruding than the upper jaw and has a pair of short and thick whiskers.

Five rows of large scales are neatly arranged on its wide fish body, which shines with silver light under the light. Each fin reflects a red or orange luster under light. The body color of juvenile fish is bluer; both the dorsal and anal fins have red-blue edges. The edges of the golden dragon's scales are golden yellow, and each fin is golden red. The body color of the red dragon is golden yellow, the edges of the scales are golden red, the mouth and gill cover have dark red patches, and each fin is dark red. The body color of the silver dragon is silver-white, and the body color of the black dragon is silver-white with a slight light bluish-purple color, and each fin is basket black. The body length of arowana can reach 50 to 100 centimeters.