Fin rot. The fins of the lightning prince fish are damaged and discolored, dull, and there are foreign objects in the rotten part. Or the transparent fin leaves turn white and gradually expand, and in severe cases, the fins are incomplete and cannot be stretched.

You can use 2 sticks of gentamicin to dissolve in a 200 kg fish tank , perform bath disinfection. You can also use 3 to 5 pieces of dysentery to dissolve in a 100 kg fish tank for bath disinfection.