The fire mouth fish and the Luo Han fish are mainly distinguished from each other in appearance:
1. From the point of view of body size, the body size of the fire mouth fish is smaller than that of the Lo Han fish. The fire mouth Fish can grow to 12-18 cm, while the Lo Han fish can grow to 40-60 cm at the longest. And the length and height of the fish is almost 1: 1.5 ratio, while the height of the fire mouth fish is not so high, and the fish also appears to be more robust.
2. From the external morphology, the forehead of the arhat fish has obvious frontal beads, while the fire mouth fish obviously does not have them.
3. From the color of the two, many of the fire mouth fish are blue, while the Luo Han fish is relatively rare.
4. From the eyes, the iris color of the arhat fish is mainly red, while the iris color of the fire mouth fish is mainly black.
The fire mouth fish and the Luo Han fish are not suitable to be raised together. The size of the fish is relatively large, and the character is more irritable, there is a strong sense of territory. At the same time, the character of the fire mouth fish is also more irritable, like to divide their own area in the fish tank. If the two are mixed, it is easy to fight. The fire mouth fish is easy to be injured in the process of fighting. Therefore, the two are not suitable for mixed culture.