How to prevent and treat fin rot in loach? A detailed guide to practical methods

Fin rot is a bacterial fish disease caused by Brevibacterium infection, and it tends to be prevalent in summer. Fin rot in loach can seriously affect the farming profitability of yellow swamp eel (Monopterus albus). Below, let us take a look at what the symptoms and prevention and treatment methods of fin rot in loach are.

Symptoms of fin rot in loach

In loach suffering from fin rot, the dorsal fin and the muscles nearby rot, and the dorsal fin may even rot away completely, with the muscles exposing bone. Both sides of the fish body, from head to tail, are swollen and have red spots.

Prevention and treatment methods for fin rot in loach

1. Splash the entire pond once with 0.3-0.5 mg/L povidone-iodine (containing 1% available iodine).

2. Soak in an oxytetracycline solution containing 10-50 mcg per mL for 10-15 minutes, once a day; results can be seen in 1-2 days, and full recovery in 5 days.

3. Soak Bahuang San in 25 times its volume of 0.3% ammonia water to enhance its efficacy, then splash the whole pond with both the liquid and the residue, making the water concentration 3 mg/L. It works extremely well when used in the early stage of the disease.