The swelling on the head of the lionhead fish may be caused by illness caused by poor water quality, or it may be caused by a fight. Once the fish is soaked, it must be treated promptly to prevent the lionhead fish from being seriously injured and leading to death.
Solution to the soaked fish on the head of lionhead fish:
1. Keep them separately
Discover the problem of soaked fish on the head of lionhead fish. If it is soaked, it must first be taken out and raised separately to avoid being bitten by other fish and aggravating the condition.
2. Disinfect and apply medicine

Clean the affected area with a cotton swab, apply special medicine, disinfect the fish tank, and put it into a place with clean water. reared in a fish tank.
3. Change the water regularly
It is also necessary to increase the frequency of water changes to maintain good water quality. Changing the water once or twice a week is beneficial to the health of the lionhead fish.
4. Supplementing nutrition
Also pay attention to supplementing nutrition to lionhead fish to enhance their physical fitness. You can feed foods with high protein content such as shrimp, mealworms, and nematodes.
5. Eat small meals frequently
Do not overfeed the lionhead fish to prevent it from eating too much and causing gastrointestinal burden. It is also necessary to prevent it from not eating during the period of injury, causing food to accumulate in the fish tank and affecting the water quality. Feed a small amount each time, and you can feed it several times a day. Any portion that is not eaten within 5 minutes of feeding should be taken out in time.