When Should I Remove Koi Eggs From My Pond?

If you’re a Koi enthusiast, you know that the breeding season is an exciting time. Watching the mating rituals and the eventual spawning of eggs can be a thrilling experience.

However, once the eggs are laid, it’s essential to know when to remove them from your pond. In this article, we’ll discuss when you should remove Koi eggs from your pond.

Why Remove Koi Eggs?

Before we dive into when to remove Koi eggs, let’s first understand why it’s necessary to do so. When Koi lay their eggs in the pond, they attach them to any surface they find suitable. The problem with leaving them there is that they become susceptible to predation from other fish or even insects.

Moreover, if you leave the eggs in your pond without removing them, they may end up overcrowding it. Overcrowding can result in a lack of oxygen for the fry (baby fish), which can eventually lead to their death.

Therefore, it’s crucial to know when to remove Koi eggs from your pond so that you can ensure their safety and improve their chances of survival.

When Should You Remove Koi Eggs?

The ideal time to remove Koi eggs is within 48-72 hours after the female lays them. If left for too long, they become vulnerable and can die due to various factors such as predation or overcrowding.

However, before removing them from your pond, ensure that they have been fertilized. You can tell if an egg has been fertilized by checking for a small dot inside it; this is where the embryo forms.

Another way of checking if an egg has been fertilized is by observing its color change; fertilized eggs tend to become opaque or whitish after 24 hours.

Once you’ve confirmed that the eggs have been fertilized and are ready for removal, use a soft-bristled brush or sponge to gently lift them off the surface they’re attached to. Be careful not to damage or break them during this process.

What Should You Do With The Koi Eggs?

After removing the Koi eggs from your pond, you have two options: either hatch them yourself or donate them to a local fish farm.

If you want to hatch the eggs yourself, you’ll need to create a separate tank with the same water conditions as your pond. Ensure that the water is well-oxygenated and maintained at a temperature of around 70 degrees Fahrenheit.

Place the eggs gently in the tank and wait for them to hatch. Once they do, feed the fry with small amounts of food frequently throughout the day.

Alternatively, you can donate the eggs to a local fish farm if you don’t want to go through the hassle of hatching them yourself. Fish farms often use Koi eggs for breeding purposes, so your donation will be greatly appreciated.


In conclusion, removing Koi eggs from your pond is crucial for their safety and survival. It’s best to remove them within 48-72 hours after fertilization and either hatch them yourself or donate them to a local fish farm. With these tips in mind, you can ensure that your Koi breeding season is successful and enjoyable.

Photo of author

Michael Allen