The problem is with the females. Some of my ranchu females appeared to be too young and some wouldn't release their eggs. In order for the spawning to begin, the female must be ready and send out pheromones to "activate" the males to start chasing her. The female that I was hoping to breed isn't cooperating at all this year. My male ranchu, on the other hand, are ready and full of milt, when I checked them. They are waiting for a signal that is yet to come.
As much as I was looking forward to raising a spawn this year, I might have to wait till next spring. This is the down side of having a small set up and fewer fish. But, I still get where I want to go with my ranchu breeding, it's just going to take a bit longer.
The summer has just begun, I wouldn't count out late spawning. Hopeful? Everything is possible!