didn't want to send something you didn't like 
On the one hand, I can move batch one of the rams and angels into the 55 gallon at any time to free up a growout bin. On the other hand, I want room for the first spawn from the panda kois. Hmmmm....
The tubes are coming out on the red koi pair.... To save or not to save their next batch, that is the question
Just remember, before they are of salable size, the fry of a parent raised spawn still need to be removed from the parent's tank to grow. Unless you have a very large tank where you can separate the fry to grow, you need to be aware that the fry can do some damage to the parents if left too long together in too small of a tank. 
I recently experienced that with the Silver/ Black pair. They were great together for a while then the fry just chewed the crap out of the male in just a few days. Took him over a month to recover from that. 
Ok, that's step 1.
It depends on the tank size and the spawn size. There's no "formula date" as to how long they can be together. What happens more often is the parents eat the fry. Maybe yes and maybe no. Even tho these were "proven" parent raisers, they were parent raisers in another setting so no guarantees they will do it for you. The key to look for is once you see the fry start picking at the parents, I would strongly suggest separating them a.s.a.p. to prevent any serious damage to the parents.
can't wait for their babies
