Columnaris Disease

Columnaris Disease is a bacterial infection that affects freshwater fish, caused by *Flavobacterium columnare*. It often appears as white or grayish patches on the skin, fins, or mouth, leading to ulcers, fin erosion, and breathing difficulties. The bacteria thrive in warm, crowded, or stressed fish environments. It spreads quickly through contaminated water or contact between fish. Proper management includes maintaining good water quality, reducing stress, and avoiding overcrowding. Treatment may involve antibiotics and improved hygiene practices to prevent outbreaks. Recognizing early signs and acting promptly can help control the disease and protect fish health.