The ki shusui project kids at five and a half months. 
 
See the ki shusui in the center.

The new oyagoi spawned on May 12, 2012. Eggs hatched a few days later, and on October 10, 2012, when the young koi were only five months old, we harvested our fish, culled out the ones that wouldn't bring the project forward. 

This page is a showcase of close-up photos of some of the keepers; ki shusui with very good markings were found, which was a terrific surprise as it was considered highly unlikely that we would get ki shusui in F1 or first generation.

As expected when shusui is crossed with ogon, we had many midori offspring.

Pictured below, our young fish are six to nine-and-a half inches long at five months old. Lookin' good!

See how these young koi progressed on the Harvest 2013 page where they are one and a half year old. 
 
See the strong lateral ki markings on this koi, seen here above and below.
The oh-so-tricky part of culling a new or unusual variety is imagining what the fish will look like in the future, when we know full well that koi constantly change. In future, I will be culling toward offspring with blue or white bodies and yellow markings anywhere with special preference for ki shusui with clean heads. That said, like the adorable standard shusui, ki shusui with cute birthmarks, tanchos, kuchi beni are enjoyed and appreciated! The ki shusui above has a little tancho that seems to have slipped. I won't hold this against him. ;)

The fish below is a midori from the same spawn, but perhaps his father was the midori in the mix. This is a lovely fish in my view, but, it will not move the ki shusui project forward. This midori with its satiny skin and neat dorsal scalation of a bronzy color, is in one of the non-ki shusui ponds.

A few photos down, see the fish with pale scales and a yellow head. That koi is "wagoi" meaning "scaled." Technically, this fish is a "ki asagi." Ideally, this koi should have a clean face -- not yellow -- but I'm happy to have a ki asagi so that the scaled genes can be crossed at some future point to add strength to the doitsu line.
I would also enjoy having ki asagi for variety. :)
Lastly, koi are meant to be viewed from the top, how one would view them in a pond as opposed to me hoicking them out of their environment so I can photograph them minutely, terrifying them in the process, I'm sure.

In the last photos, we have separated the koi by color as we culled. I'm very fond of the green doitsu midori. I have kept quite a few of them in the non-ki shusui ponds.  In future spawns, I will eliminate the male midori from the mix and see if that increases the percentage of ki shusui. :)