What should I do if the Luohan fish is rotten?
As a popular ornamental fish, Luohan fish is loved by aquarists because of its bright color and unique shape. However, during the breeding process, it is inevitable to encounter the problem of fish body ulceration, which not only affects the ornamental quality, but may also endanger the life of the fish. This article will combine the hot topics and hot content on the Internet in the past 10 days to provide you with a detailed analysis of the reasons why the Luohan fish is rotten and how to solve it.
1. Common reasons why Luohan fish is rotten

Body ulcers of Luohan fish are usually caused by the following reasons:
| Reason | Specific performance |
|---|---|
| Water quality deteriorates | Water quality: Ammonia nitrogen and nitrite exceed standards, and the water body is turbid. |
| bacterial infection | White spots, red spots or ulcers appear on the body surface |
| Parasitic infestation | The fish body rubs against the tank wall, causing local ulcers |
| Traumatic infection | Wound infection due to fight or collision |
2. Solution to the rottenness of Luohan fish
For ulcer problems caused by different reasons, the following measures can be taken:
| Question type | Solution | Things to note |
|---|---|---|
| water quality issues | Change 1/3 of the water immediately to strengthen the filtration system | When changing water, make sure the temperature difference does not exceed 2℃ |
| bacterial infection | Use yellow powder or antibiotic medicated bath | Use the dosage strictly according to the instructions |
| Parasite | Use special insecticides | Stop eating during treatment |
| Traumatic infection | Apply erythromycin ointment topically | Be gentle when operating |
3. Measures to prevent Luohan fish from ulceration
Prevention is better than cure. Taking the following preventive measures can greatly reduce the risk of Luohan fish getting sick:
1.Change water regularly: Replace 1/3 of the water volume every week to keep the water fresh.
2.Scientific feeding: Avoid excessive feeding and clean up leftover bait in time.
3.water temperature control: Keep the water temperature between 28-30℃ and avoid drastic fluctuations.
4.Environmental layout: Avoid placing sharp objects in the tank to reduce the risk of trauma.
5.New fish quarantine: New fish entering the tank must be quarantined and observed for 2 weeks.
4. Experience sharing by popular aquarists
Based on recent popular discussions on aquarist forums, we have compiled the following practical experiences:
| Treatment | Effect feedback | Recommendation index |
|---|---|---|
| salt bath therapy | Effective for mild infections, but limited for severe infections | ★★★☆ |
| garlic therapy | Improve immunity and assist treatment | ★★★ |
| UV sterilization | The preventive effect is good, and the treatment needs to be combined with drugs | ★★★★ |
5. Reminder of common misunderstandings
When dealing with the problem of Luohan fish ulcers, you need to avoid the following common misunderstandings:
1.Overmedication: Excessive use of drugs can damage the internal organs of fish.
2.ignore water quality: Mere use of medication does not improve water quality, and the therapeutic effect will be greatly reduced.
3.Premature discontinuation of medication: Treatment should be continued for 3 days after superficial symptoms disappear to prevent recurrence.
4.Improper mixing: Luohan fish is aggressive, and improper mixing can easily lead to trauma.
6. Professional advice
If symptoms do not improve after the above treatments, it is recommended to:
1. Take clear photos or videos and consult a professional aquarium store or veterinarian.
2. Consider comprehensive testing of water quality, including pH value, hardness, ammonia nitrogen and other indicators.
3. Isolate sick fish if necessary to prevent infection from other healthy fish.
The health status of Luohan fish directly reflects the quality of the breeding environment. Through scientific feeding management and timely disease prevention and treatment, most ulcer problems can be effectively controlled. Remember, prevention is always more important than cure. Maintaining a good water quality environment is the key to preventing various fish diseases.
check the details
check the details