1. Reason: If Luohan fish are often not fed or fed with a single food for a long time, their body will be undernourished, their growth and development will be affected, and the head of some Luohan fish will be sunken.
2. Treatment: Choose some nutritious foods to feed them, such as protein-rich meat and nutrient-rich fish feed. Give them adequate nutrition and they will recover after a period of time.
by parasites 1. Cause: When the water quality of Luohan fish is too poor, the parasites in the water will infect them, causing them to feel uncomfortable and have a sunken head. And
2, the treatment method comprises the following steps of: fishing out the Luohan fish infected by parasites, and separately raising the Luohan fish in an isolation tank with similar water quality. They were bathed daily with a low concentration of potassium permanganate until recovery. It is also necessary to change the water in the original fish tank, usually about one third, to improve the water quality in the fish tank.
1. Reason: When raising Luohan fish, if the feeding density is too high, or the fish tank in which they are raised is uneven, their heads will be injured. At this point, their heads will appear depressed.
2. Treatment method: fish out some of the fish in the fish tank, reduce the feeding density, and give them a smooth surface of the fish tank, rest for a period of time.
