1. Cause: Long-term non-replacement of water leads to deterioration of water quality. The tail of the fish is full of bubbles and can not be excreted by changing water. The bubbles inside can not be excreted for a long time, which will cause the tail of the fish to break and rot.
2. Treatment: In this case, the rotten tail is not very serious, as long as the timely and reasonable replacement of feed water to ensure clean water quality. After a while, the fish tail will recover.
1. Cause: When changing the water, the temperature of the new water is not well controlled, which leads to the sudden change of the ambient temperature. Fish can not adapt to this change, seriously affecting the endocrine function of its body surface cells, leading to soft tissue decay at the tail.
2. Treatment method: Do not use water with large temperature difference when changing water. Removing a quarter of the old water and adding new water can prevent excessive temperature changes. In addition, a proper amount of fine salt can be added into the water to play the role of sterilization and disinfection, which is conducive to the recovery of fish tails.
1. Cause: Fish are injured in the process of biting each other, and the wound is exposed to water containing bacteria, causing infection, which leads to rotten tail.
2. Treatment method: Sprinkle treatment with 0.01% potassium permanganate solution, which can effectively inhibit rotten tail. If the situation is more serious, we should use the method of medicinal bath treatment. Generally, fish are immersed in water containing furacilin or furazolidone for 20 minutes each time, which can inhibit rotten tail and restore the growth of fish tail.
