What koi varieties are there? Detailed explanation of the culling method for Kohaku koi fry
Kohaku koi fry culling. When selecting Kohaku, on the head of the small fish you must see the edge of the red patch, and the white of the mouth must be exposed, or there must be a broken pattern behind the mouth; this must be very clear. At the same time, it is best to choose ones with a large pattern on the head; the red patch must not cover the eyes, and you must be able to see...
When selecting Kohaku, on the head of the small fish you must see the edge of the red patch, and the white of the mouth must be exposed, or there must be a broken pattern behind the mouth; this must be very clear.
At the same time, it is best to choose ones with a large pattern on the head; the red patch must not cover the eyes, and you must be able to see both eyes, just as if the red patch were placed on top of the head. This can already be seen very clearly at the fry stage, and the red must have depth. Those whose head pattern is loose and lacks character can be culled.
Next are those with a shoulder break, that is, behind the skull the red patch must have a split, even if it is a very small, subtle break, otherwise it will not be the makings of a high-quality fish. Roughly select 1000 ~ 1500 fish, and from the small specimens select 10 ~ 15 fish. The proportion for selecting the best fish is roughly 1 out of every 15.
When selecting fish, you must concentrate; as soon as you see a good one, fix your eyes on it, and do not let your gaze wander everywhere.