I got a male and two female red empress cichlids two days ago from a breeder. I have them in a 75 gallon aquarium with 1 male convict an 2 oscars one is 2 inches and they other is almost three inches. Don't worry I have a 100 gallon for the oscars when they get bigger but until then no need to set it up. Any way. I have a 20 gallon running with a betta and a pleco which will later be used for the mother to hold her fry. Only have betta and pleco in there to get the tank cycled. Back to the main question how long should it take before my new red empress start to breed? I don't need to know how to breed them I just need to know how long before they are comfortable enough in there new tank to breed. They are at a mature age.