Agreed on the amazing reproductive time.
I use Manna Pro for my rabbits. It seems high quality. I think I used Ag Land for my quail and it worked well too.
The cost for the organic stuff just blew me away so I started experimenting with little bulk bags of grain from the health food store. My mixture varried, but I put things in there like millet, red lentils, oats, and so forth. I soaked them overnight to soften them.( I added kefir later but that is kinda a long story)They continued laying when I did this, but the babies did not grow as big on this diet. If I did it again, I would probably try sprouting the mixture to get more food out of It. All this is pretty time consuming but I had fun with it.
Also, I have to say, nice job on the watering system. I have been thinking about setting something like that up but haven't got around to it yet. It looks very convenient.
Thanks for sharing your quail story.