Here is a pic that shows the culls, in the top left.
I flushed two of them today. One was a runt for sure. The other had some swimming problem. The third, I put in another tank with some other undesirables that will get a last chance at life. I've had a few end up as nice fish: just undersized compared to the rest and a little slow to develop. The third will have another month to get some nice shape.
So, there are 27 left. I probably need to go down to the '8' this week. Have the rules been posted, yet?