Thank you for this video. I had an accidental spawn when I first moved to this house 4 years ago and was able to hatch and raise 104 koi fry and it was a wonderful experience. I gave away about 85 tosoi to friends and acquaintances with ponds. Kept 15 to see how they developed and then rehomed most of them later as they became nissai.
Thanks for the great info. My koi is spawning this morning. I did move some of the eggs a to small tanks and will monitor how it goes. It’s amazing watching spawning process.