Yokan is a Japanese sweet made from agar, sugar, arrowroot powder, water, and adzuki bean paste. It ends up something like Turkish Delight. Sometimes additional flavourings such as fruit or chestnuts are added. Westerners tend to prefer these, finding that for them the plain ones have no taste.
The day before the Koi hatches the eyes in the egg will have a shine to them. Soon afterwards, the young Koi will begin to wriggle then, gradually, over the next few hours, it will break out of its 'shell'. It will take three to four days for the Koi eggs to develop and the fry to hatch at temperatures of 68 -7l.Koi fry can develop at temperatures as low as 63, in which case their incubation will take five or six days, or as high as 77, which will decrease their hatching time.he day before the Koi hatches the eyes in the egg will have a shine to them. Soon afterwards, the young Koi will begin to wriggle then, gradually, over the next few hours, it will break out of its 'shell'. It will take three to four days for the Koi eggs to develop and the fry to hatch at temperatures of 68 -7l.
They usually don't get more than 15 inches but the largest types can be around 36 inches. They normally live for about 30 years but its not unusual for them to reach 100 if well cared for. The oldest koi was 226 when it died in the 1970s it can take more than 10 years to get to full size. Basically if you raise them the cheap American way, in a backyard pond or a mini pool at a Chinese restaurant, you can expect to keep them for about 30 years and get foot long fish.