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.
First time egg layers may take up to a week to lay their first clutch. Figure out the time since they were bred, and she could lay her eggs any time from two weeks to four weeks after breeding, most of the time it is about 3 weeks on the dot.