How to Keep Koi Fish? Common Breeding Mistakes and a Complete Guide to the Causes and Prevention of Tail Rot Disease
Koi Tail Rot Disease and Hole-in-the-Head Disease. The disease is contracted through skin infection after the tail fin is injured. Symptoms: In the early stage of the disease, there is a yellow or yellowish-white viscous substance on the outer edge of the fin and the caudal peduncle; then the tail fin and caudal peduncle become congested, inflamed and ulcerated. In severe cases, the tail fin rots away, and the ulcerated area...
The disease is contracted through skin infection after the tail fin is injured.
In the early stage of the disease, there is a yellow or yellowish-white viscous substance on the outer edge of the fin and the caudal peduncle; then the tail fin and caudal peduncle become congested, inflamed and ulcerated. In severe cases, the tail fin rots away, and the ulcerated area shows muscle bleeding, ulceration and exposed bone marrow, ultimately leading to death.
In spring and autumn, when the water temperature is low, secondary water poisoning infection can also occur.
(1) Piperacillin/tazobactam (2.25 g) diluted with 0.7% normal saline to 300 ml, inject 2 ml into the body cavity below the pectoral fin, apply alcohol to the affected area, then apply erythromycin ointment externally.
(2) For those weighing less than 100 g, soak in a 5 mg/L povidone-iodine solution for 10 minutes, then apply alcohol to the affected area and apply erythromycin ointment externally, for 3 consecutive days.