I had a mated pair of BGGG Jack Dempseys.They spawned 4 times for me in the past.Always about a week after spawning the male(5 inches) would rough up the female(4 inches).I would remove him and she would try and raise her fry by herself.Then about 4 to 6 weeks later I would put them together again and they would mate.The last time I put them together he actually killed her.They were in a 46 gallon bow tank by themselves.I have another BGGG female JD that I put in the tank with the male,but am using a tank divider.How long do I keep the divider up for?Should I look to see if they are flirting with each other or being aggressive toward each other?I want to be very careful and not let him kill another female.