I am pretty sure I know all of the varieties, its hard for me to differintiate the Hajiro and Matsukawabake. but I just learned that the Hajiro has white on the tip of its nose, so kind of like a shiro kuchibeni, and it has white on the tips of its fins. and the entire koi is black
The Matsukawabake is like somewhat of a black koi with kage on it, but the kage is revealing the white under the black...
Maruten is a red dot on the head of the koi, but the koi also has the same colors and different ones present on its body, making it maruten.
I think I need to evaluate what I think I have down to a proficient level, and work from their..
Nvm, I am not my sensei. That is for my sensei to decide.