simply leaving the female in there isn't a spawning method...what do you mean by living together?
They shouldn't be together unless they have been properly conditioned and such, and defiantly not for a living arrangement.
If there is no bubble nest remove the female.
Feed both high protien food like frozen blood worms or brine shrimp or live foods like flightless fruitflies or pinhead crickets(the itty bitty baby ones). do this for about a week or more and the female will get eggy.
You can then start introducing her to the male via a vase or moving her tank near his.
let them see eachother for a few hours a day. when the female is barred up(if she's dark bodied enough to see) and swimming in a headdown submissive manner and trying to fallow themale she''s ready.
The male may or may not have a nest but if he's doing a "wiggle dance" and swimming away trying tomake her fallow ten he's generally ready.
when both are ready you can release her.
Some males won't blow a bubblenest untill they spawn.
Things to have: heater, IAL(not needed but VERY helpful), jars for the fry.
I would recomend spawning in the five gallon and when the fry are a couple/few weeks old moving the to the 60 to grow out if you have alot.
Also, you shouldn't breed with the intention to sell, you really won't make a profit. It's alot of work to break even and you should only sell fry that reach a certain standard(no deformities or illness, don't try to sell a delta as a HM and so on).
The ones you see on aquabid are often the best handfull out of HUNDREDS of fry from top breeding pairs.
Your chances of sell worthy fish are upped if you start with high quality breeders and do alot of research into breeding and raising the fry.
OH OH OH... and for the age, at LEAST 3.5months, and that's if they've grown fast enough and matured. generally new breeders fry grow a little slower and can be rehomed around 5 months.
(sorry if tihs came off at all rude, if you have any questions we can all answer to the best of our ability)
Last edited by Bambi; 01-02-2012 at 08:23 PM.