The death of goldfish due to scale loss may be due to the following two reasons: 1. The goldfish is frightened, which may be due to too much debris in the fish tank. The goldfish accidentally knocks off the scales after being frightened, and then becomes infected with bacteria or parasites, causing the goldfish to die; 2. Goldfish suffers from pine scale disease, which is usually caused by the water temperature being too low or the temperature difference being too large when changing the water.

Tip:

If the fish tank is not big enough, do not put too many decorations, which will reduce the living space of the goldfish and may injure the goldfish. If goldfish suffers from pine scale disease, the owner can increase the water temperature appropriately and sprinkle an appropriate amount of potassium permanganate into the fish tank to give the goldfish a medicated bath.