Oh My Goodness that is one WONDERFUL BEAUTY!!!!!!!!!!!!!!! Great save!
Wait until he makes his little bubble patch and then throw a female in there... but I'd do it in a larger tank... this way she can run away. I'd put a couple in there so the aggression isnt taken out on just one... if the female isnt ready to mate but he is he'll harasser her until shes a goner... that's what you have to watch for.
I read somthing that said to use a tank divider and watch the behavior if she looks receptive then you take the divider out. Im not planing on keeping the females in there all the time after what I have read.