It is very simple to divide male and female silver arowana, which can be known by their body shape, head, pelvic fins, gills, abdomen and other places. Silver Arowana, like most fish, is much larger than female fish, and the body of male Arowana is longer than female fish. Silver Arowana is somewhat different from other fish. The male fish needs to contain eggs, so it can be seen that the head of the male fish is much larger than that of the female fish.

Anyone who has raised Arowana should have seen the A-shaped mark on their gills. The mark of male Arowana is irregular. In addition, the most obvious place for male and female silver arowana should be the abdomen. Generally, the abdomen of female silver arowana is more bulging than that of male fish. This is because female silver arowana needs ovulation when it matures, so its abdomen is bulging compared with male fish.

Silver arowana mainly depends on their eyes, mouth and body. If these three places are healthy, they must be silver arowana with good quality. Healthy silver arowana generally have flat eyes, and those who lose their eyes are defective products. Silver Arowana's mouth can't be higher than its upper jaw, otherwise it will affect its beauty. Silver Arowana's body must be straight. Now many silver Arowana have V-shaped waist because they are in a narrow space for a long time, which also affects their viewing.