no offense but your going to ruin a beardies life that way, just keep the one, trust me save you some cash, if your feeding her right and she is eating you probely are already feeding her close to 60 crix a day, plus a expensive reptisun bulb and dusting. not in my opnion but in 95% of bearded dragon keepers opnion you need seperate 40 gallon breeder tanks or as said above the females life will be misrable, by large tank im assuming at least a 120 gallon right, i've seen males use every inch of a 75 gallon and be very dominate over it