Continuing on from Why I Heat Tosai. Four Reasons, Size, Growth, Fat reserves, Thrive or Survive or Die! In this video I outline my reasons for HEATING tosai. Tosai are basically one year old koi. I think some of the reasons you may guess but I am sure some will be a surprise. Watch the video and judge for yourself. Please post any questions in the comments and enjoy. Water temperature, Cheap food. Chelsea Flower show! Koi you choose.