How can you stop koi eggs being eaten in a outside pond?

To protect koi eggs in an outdoor pond, you can use spawning mops or artificial spawning surfaces to provide hiding spots for the eggs. Additionally, installing a net over the pond can help deter predators like birds and other fish. Regularly monitoring the pond and removing any potential threats, such as unwanted fish or wildlife, can also help safeguard the eggs. Finally, introducing plants around the pond can create a more natural habitat that offers additional protection.