What should I do if my goldfish is rotten?
Recently, many pet lovers have been discussing on social platforms how to prevent and treat goldfish tail rot disease. As one of the common diseases of ornamental fish, tail rot not only affects the appearance, but may also endanger the life of goldfish. This article will provide you with structured solutions based on popular discussions across the Internet in the past 10 days.
1. Recognition of symptoms of tail rot disease

According to feedback from netizens and suggestions from experts, tail rot disease mainly exhibits the following characteristics:
| symptom stage | Specific performance | Hazard level |
|---|---|---|
| Early stage | The edge of the tail fin is white or congested | ★☆☆☆☆ |
| medium term | The tail fin is chipped or ulcerated | ★★★☆☆ |
| Late stage | The ulcer spreads to the caudal peduncle | ★★★★★ |
2. Cause Analysis
Based on recent pet forum data, the main causes of tail rot disease are as follows:
| Cause type | Proportion | Typical characteristics |
|---|---|---|
| Water quality deteriorates | 42% | Ammonia nitrogen exceeds the standard/water has not been changed for a long time |
| bacterial infection | 35% | Pathogenic bacteria such as Flavobacterium columnaris |
| physical damage | 18% | Decoration scratches/fight injuries |
| other reasons | 5% | Malnutrition/parasites, etc. |
3. Treatment plan
According to the recent actual test recommendations of popular fish farming bloggers, effective treatment methods include:
| Treatment | Specific operations | Effective time |
|---|---|---|
| water quality management | Change 1/3 of the water every day and keep the water temperature at 26-28℃ | 3-5 days |
| salt bath therapy | Soak in 3% salt water for 10 minutes/day | 5-7 days |
| drug treatment | Use yellow powder/oxytetracycline medicated bath | 7-10 days |
| Isolated breeding | Separate isolation to prevent infection | All necessary |
4. Preventive measures
Based on recent hot search topics, it is recommended to take the following preventive measures:
1.Regularly test water quality: Maintain pH value 7.0-7.5, ammonia nitrogen content <0.02mg/L
2.Scientific feeding: Feed 2-3 times a day, preferably finish within 5 minutes
3.Environmental optimization: Remove sharp decorations and maintain appropriate breeding density
4.New fish quarantine: New fish entering the tank need to be observed alone for 1 week
5. Common Misunderstandings
According to recent discussions among netizens, special attention should be paid to the following misconceptions:
| Misunderstanding | correct answer |
|---|---|
| The mess will heal on its own | Timely intervention and treatment are necessary |
| The more medicine you take, the better | Use according to the dosage instructions |
| Multiple medicines can be mixed | Caution is required when mixing drugs |
| Only treat sick fish | The entire tank needs to be disinfected to prevent recurrence |
6. Rehabilitation care
Referring to recent popular care plans, you should pay attention to the following during the recovery period:
1.Nutritional supplements: Feed special feed rich in vitamins
2.Stable environment: Avoid drastic temperature changes
3.Observation record: Daily photos taken to compare recovery status
4.gradual recovery: It is not suitable to keep with other fish within 2 weeks after recovery.
Through the above structured solutions, combined with the recent practical experience of fish farmers, most goldfish tail rot diseases can be effectively controlled. The key is to achieve early detection and treatment, and at the same time establish a scientific prevention system so that the fish can grow up healthily and happily.
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