1. Differences in size: goldfish larger size, the appearance of domineering. The body of the silver arowana is flat, and the whole body is long and belt-shaped.
2. Body length difference: Compared to the silver arowana, the body length of the goldfish is shorter. Adult goldfish are only 40-50 cm long. The adult silver arowana is 50-70 cm long, the longest up to 120 cm, belonging to large and medium-sized fish.
3. Difference between dorsal fin and caudal fin: The dorsal fin and caudal fin of goldfish are divided into upper and lower parts of the tail, which form a small triad together with the tail and are not connected together. The dorsal and caudal fins of silver arowana are belt-shaped, starting from the middle of the fish body and growing to the tail.
4. Color difference: Jinlong juvenile fish is silver, scales partial gold. The body of the adult goldfish becomes golden, and the scales are golden. The silver arowana's young body all over assumes the blue, after the adult, the entire body silvery, the scale has the pale orange gloss.
goldfish and silver arowana can not be raised together. Although they all belong to arowana, the territorial consciousness of goldfish is very strong, while the temperament of silver arowana is relatively mild. If they are mixed by force, in order to compete for territory, the domineering golden arowana will fight with the silver arowana. When they fight, they will hurt their own scales, which will fall off, and the weaker party will be killed. Therefore, goldfish and silver arowana can not be cultured in the same tank.
