I have 3 gold nugget plants and 3 hssiao his hung shih doing well in my greenhouse. They're still small (about 8" tall) and nowhere near producing fruit yet. I'm looking forward to them.
I wouldn't put the younger ones in with the older ones until they're six weeks old. At four weeks they're still significantly smaller than the older birds and are likely to get bullied. The older male will try to mate with the younger birds and likely injure them in the process. I've seen...
Bobwhites do well in pairs, but they are even less likely to be tame pets than coturnix. If you can set up an indoor aviary for decoration, they would make a nice bit of scenery like an aquarium.
Don't boil the water, but hot, about 160 Farenheit. The article below shows a few different ways to process.
https://www.backyardchickens.com/articles/how-to-process-your-quail-including-gory-pictures.75834/
Coturnix quail? If so, the ideal ratio is one male to five females. If you try to keep them in pairs, you will likely end up with an over mated hen. At best, this will mean a bald hen. At worst, you'll have a scalped and dead one.
Another thing about keeping them indoors is that they...
These are all coturnix. If they are celadon, you won't know until they start laying because celadons lay the pale blue eggs. They can come in any colour.
I have labeled these three different coloured ones.