sorry to beat an already dead horse but i have to agree with most of you. For example, if I asked you; how big can a chagoi grow? The questions that would come would be:
What pond size do you have?
Who is the breeder?
Is the fish male or female?
What kind of filtration do you have?
How often do you feed?
What are your water changing techniques?
and the list can go on even more.... Simply put, MOST questions involving koi fish are not simple!(unfortunately you have to develop thick skin sorta)