1. Reason: The loss of swim bladder of goldfish may be caused by poor water quality. If the content of ammonia, nitrogen and chlorine in fish tank is on the high side, goldfish will be poisoned.

2. Treatment: The breeder needs to change the water for goldfish first to reduce the content of harmful substances in the water. If the content of harmful substances is high, the breeder needs to replace all the water. Filters can also be installed to slow down the deterioration of water quality.

1. Reason: Goldfish's swim bladder loss may also be caused by lack of oxygen. If there is not enough oxygen in the fish tank, they cannot maintain balance and are prone to swim bladder loss.

2. Treatment: The breeder needs to install an oxygen pump and continuously pump oxygen into the fish tank. In the previous week, breeders needed to turn on the oxygen pump 24 hours a day. After 7 days, after the swim bladder loss is relieved, the breeder can take oxygen for 1-2 hours every day.

1. Reason: The loss of swim bladder in goldfish may also be caused by improper feeding, such as feeding sharp food, which leads to scratches on their internal organs. It is also possible that too much indigestible food was fed, which caused the stomach to squeeze into the swim bladder, resulting in imbalance.

2. Treatment: Breeders need to feed them some anti-inflammatory drugs, such as penicillin, amoxicillin, oxytetracycline, etc. As long as the visceral wounds heal, the loss of swim bladder can be alleviated. If the swim bladder is lost due to indigestion, the breeder needs to feed them some drugs to help digestion. After the food in the body is digested, the swim bladder loss can be alleviated.