You can put them together when she is ready. To test for this, hold the female outside of the male's cage so they can see each other but not get at each other and observe the reactions. If she turns dark, hisses, gapes, rocks back and forth, lunges at the male, etc then she is not receptive and should be put back in her own cage. If she is calm, does not inflate her body, turn dark, hiss, rock, etc then she is receptive.nif the male is receptive then they can be put together...but watch to make sure things don't turn bad and after the mating, as soon as she starts to repel the male, separate them.