1. Causes and Symptoms: Caused by bacteria. Caudal fins are congested and eroded. In severe cases, the caudal fins fall off and endanger the muscles of the caudal peduncle. The aquatic fungi on the saprophytic flora (caused by water mold) cause the diseased fish to eventually float on the water surface, and it is unable to swim and even die. Most of the deaths were in March, but the deaths caused by tail ulcers were far less than those caused by bleeding diseases.
2. Control methods: Use lime slurry to spread the whole pool, so that the concentration of lime in the pool water is 20-30 mg/l. At the same time, with the oxytetracycline Quanchiposa, so that the pool water concentration of 2 ~ 5 mg / liter.
2. Control methods: Use lime slurry to spread the whole pool, so that the concentration of lime in the pool water is 20-30 mg/l. At the same time, with the oxytetracycline Quanchiposa, so that the pool water concentration of 2 ~ 5 mg / liter.
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