How To Care For Eggs After They Are Laid. Cleaning and Storing Eggs. Now carefully lift each of the eggs and move them to the container.
After the first egg hatches the rest will follow most often within the next 24 to 48 hours. Put the aquarium heater in the water and set it to the correct temperature. You should keep them in the same orientation that they are laid.
Seal the top with plastic wrap to hold in the heat and humidity.
Eggshells have a bloom a natural coating that protects the egg from bacteria. If you do not remove the eggs chances are that the adult Koi fish will eat most or all of the eggs. Put the aquarium heater in the water and set it to the correct temperature. To do this use something dry and slightly abrasive to rub off any dirt or feces until the egg is clean.