Keep inspecting the fish regularly, and if any symptoms of disease are observed, seek expert advice immediately.
Use tarpaulin or similar material to cover the pond when necessary. This helps maintain a stable water temperature.
The water pH should be between 6.5 and 8 during the winter. Use lime to balance the pH levels if required.
Use copper sulfate to protect the pond from fungal infections.
To purify pond water, use 350 grams of potassium permanganate per acre per meter of water depth.
Regularly check and monitor the water temperature.
Winter, fish tend to eat more slowly, so provide food in the right quantity to avoid overfeeding or underfeeding.