First of all, it is necessary to determine whether the golden koi have any signs of pre-spawning. When the golden koi is about to spawn, you can see that the abdomen is very bulging. The male fish chases the female fish and runs around. This situation is basically about to spawn.

The golden koi is in vitro fertilization, and the golden koi They do not protect their own eggs. There are generally many golden koi raised at home. Therefore, in order to produce eggs that can hatch into small fish, in vitro fertilization must be completed. The solution is to find a larger, clean water basin to separate the female and male fish from other fish and put them together (the water must be the original water in the fish tank, otherwise the fish will not be able to adapt).