Now this may come out wrong....but youll know he's conditioned to make a nest......when you see one
Darlin please please please do a lot of research before you start breeding. A bad match can leave you will dead fish...and a good one can leave you with 100 plus! There are so many things that you need to think about, and just by going from your questions so far, I don't think its wise for you to go through with this yet.
If I were you, I would wait for now, and just learn all you can. Save your money (your gonna need alot of it) and gather your materials FIRST. At least a hundred jars, sponge filters for the fry tank....the fry tank itself....
Netty would be able to give a better list, I dont breed, I know I cant provide for the little darlins right now....T_T