If you have males and females in the same pond, some will survive.
![Smiley :)](https://www.worldwidewatergardeners.org/forum/Smileys/smilies_smf/smiley.gif)
They are so tiny at first - you may just not notice them. They are the size of brine shrimp.
Most baby koi starve to death in a pond without additional food. The food they have to eat has to be smaller than themselves.
Then the bigger fish may predate on them.
But some WILL survive.
![Yahoo @O@](https://www.worldwidewatergardeners.org/forum/Smileys/smilies_smf/yahoo.gif)