Hi Dinh, also saw ur other thread on hosokai kohak. It seems u are on the look out for a piece of kohak

. Imho better choose maruyama than hosokai espcially if you havent got a chance to raise maruyama kohak before. You can check their site to see pix of their fish and its characteristic. Its
http://www.kagura-beni.jp/2003-12.htm. I dont any affiliation wt this farm just want to express my opinion only.
Paul