What to Do If a Goldfish's Tail Is Rotten? Detailed Explanation of Causes and Treatment Methods
When a goldfish's tail is rotten, it is generally related to deteriorating water quality and bacterial infection, excessive stocking density, fish biting each other, or improper handling during care. If not treated in time, the entire tail can rot away, and in severe cases it can even lead to the death of the fish. Treatment must target the specific cause. Let's take a look together below at what to do if a goldfish's tail is rotten!
Why does a goldfish's tail rot?
When a goldfish's tail is rotten, it is generally because the person handling the water change caused too great a temperature difference, or because the water was left too long without being changed, causing the water quality to deteriorate, or because the fish bit each other and injured the tail. After being injured, the fish is prone to bacterial infection, usually mold, and mold causes water mold disease, so the tail begins to slowly grow moldy and deteriorate. The general early symptoms are slow movement when swimming, reduced appetite, or even refusal to eat. Then the tail begins to rot, usually with the connective tissue splitting open, taking on the appearance of a broken broom.
What to do if a goldfish's tail is rotten?
The first thing to do is to isolate the goldfish and keep it separately to prevent other fish from becoming infected. Because rotten tail is generally due to water quality problems, it is best to change the water first. However, when changing the water, you cannot change all of it at once, because changing it all at once will only hurt the fish more due to the excessive temperature difference. Generally, change one-fifth of the water at a time. Then carry out thorough disinfection. If it is the early stage of illness, you can add salt to increase the concentration of the water. But if the illness is very serious and the tail has already begun to rot, then medication should be used immediately. Generally, potassium permanganate or copper sulfate solution can be used. During treatment, feeding live animal-based feed will help it recover faster, and more sunlight can also promote the fish's recovery.
Treatment methods for goldfish rotten tail
1. Put 0.2 grams of nitrofurazone powder into 100 kg of water for soaking and disinfection. After repeated medication, the condition can be alleviated.
2. Put 3 to 5 tablets of furazolidone into 100 kg of water and soak the diseased fish for 30 minutes.
3. Put 5 to 8 tablets of oxytetracycline into 100 kg of water for soaking and disinfection, which can prevent infection with this disease.
4. Soak and disinfect with low-concentration potassium permanganate plus salt solution.
5. Soak and wash with gentamicin. Put 2 tubes in a 100*50*35 cm aquarium.
6. Soak the diseased fish in 1% salt water until fully recovered.