They are ready for breeding. I think the breeding for a few hours is a good idea with just one female to use. Just cover the bottom with peat at the depth of 1/2". Put the female in first and add the male once the female is settled a bit. Add some plants for safety. Leave them together as long as they get along or until the female no longer looks plump. Then separate. I'd try a 2 gallon tank though. Getting the hang of breeding in the bowl of peat can take a while. It helps to siphon off peat that falls out of it when putting it in the tank. Those males are beauties -- especially the big one. Time to rewet the peat and see if any more fry hatch out. Sorry about the other female. It's always something. Who knows what happened. Just breed right away to insure some eggs. Are you clear on drying and storing peat now?