Originally Posted by
Matt24
A lot of this depends on what type the parents are. If the parents are kohaku, sanke, or showa, the yellow will likely turn orange, and maybe red. But if the parents are yellow (ogon, kigoi, or hariwake), the yellow will probably stay yellow.
if the parents are metallic, the white fry will likely be platinum. If they are not metallic, the white fry will likely be shiro muji. Both are white, but one is metallic, and the other is not.
Messy sumi probably won't clean up, but on some koi, the sumi could improve and fill in and make more solidified patches. Sumi patterns seem to be much more volatile than other color's patterns.