? 1. Look at the body shape: If you want to distinguish whether the colorful fairy fish is an old man's head fish, you can compare the body shape with the normal fish. But choose normal fish that breed at the same time. Compared with normal fish, the old man fish is smaller and looks like it is malnourished. However, some developmental delays caused by environmental or feeding reasons can not be counted as old head fish.
2. Look at the eyes: The eyes of the normal fish of the colorful angelfish are medium and look more coordinated with the body. The eyes of the old fish are relatively large, coupled with the thin body, it looks incongruous. Normal fish's eye line is relatively long, the whole eye line can arrange at least four eyes, the old man's eye line is relatively short, generally can not arrange four eyes.
3. Look at the mouth: The old fish is thin and weak, so it will appear that the mouth is more prominent, while the normal fish is full, and the mouth is not obviously prominent.
colorful angelfish old man fish is caused by inadequate nutritional intake during growth and development, if you want to recover, you must first ensure adequate nutrition of food, it is best to feed different foods every day, so as to increase their food intake. Adequate space for activities should also be ensured, and artificial water flow can also be set up to promote their movement. Finally, their physical condition should be carefully observed, and once the disease is found, it should be treated immediately.
