Here's why:
* Egg Production: Goldfish produce eggs gradually, not all at once.
* Spawning Behavior: Goldfish engage in a spawning ritual where the female releases a small number of eggs at a time, and the male fertilizes them externally. This process can repeat over several days.
* Survival Rate: Laying eggs in batches increases the chances of survival. If all eggs were laid at once, they might be overcrowded, leading to competition for resources and higher mortality rates.
Therefore, goldfish laying their eggs in batches is a natural behavior that helps ensure the survival of their offspring.