Koi jumping out of ponds
I have recently had a problem with 4 of my koi fish jumping from my pond. I have had these koi in this pond for a couple of months now. The water temperature is starting to drop however: I thought this would slow them down not spend them up. I have tested the water and every thing tested fine. Does anyone have any idea on why my koi would decide now that it would be a good idea to jump out?